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Catalog of major explosions and paroxysms at Stromboli volcano (Italy) from 1970 to 2023 – Data Base

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Events not characterized as paroxysms, major explosions or seismic sequences

1970-1979
YearMonthDayGMTType of eventPrevious catalogs
(characterization)
People affectedSeismicitySound/Air shockVentsAsh plume/falloutBallistic projectilesField surveyPumicesFiresMappedPhoto/videoHot avalancheLava flowMain References
1972102206:00seismic sequence--10 minutes, 20 EQs-----------BVE 1972 - Nappi;
Lo Bascio et al. 1973: BullVolc37;
Capaldi et al. 1978: BullVolc4;
Falsaperla et al. 1994 - ActaVulc5
1972124?major explosionBarberi et al. 1993; Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion)
--Air shock breaks a few windows in ScariCSash, sand, scoriae spatter, bombs

large fragments of old lava fell above San Bartolo
yes (4 months later)

trail to Il Pizzo covered by 20-30 cm lapilli at 750 m asl

large blocks inside crater terrace
------BVE 1972 - Nappi;
Nappi 1975: BollSGeoIta94
Nappi 1976: Nature261
19721214?uncertain major explosionBarberi et al. 1993; Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion)
--Strong roar in ScariCS-Only Sciara del Fuococumulative products with 4/12------BVE 1972 - Nappi
197491900:10major explosionBarberi et al. 1993; Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion)
-two explosions separated by 10sAir shock recorded at Panarea, Lipari, Vulcano, Novara

People are awakened in the village and exit their houses
Nmax. H = 1 km (?)-yes, destroyed scoria cones, enlarged craters, deep changes in the crater terrace------BVE 1974 - Nappi;
Nappi 1975: BollSGeoIta94
Nappi 1976: BollSGeoIta95
Nappi 1976: Nature261
197511420:30uncertain major explosionBarberi et al. 1993
(major explosion);

Bevilacqua et al. 2020; Calvari&Nunnari, 2023 (uncertain major explosion)
--Strong roar in ScariN+CSpine-shaped ash cloud 800 m high-yes, ten largest blocks of the ejecta: 10 kg at a site 0.1 km distant from the source------BVE 1975 - Nappi;
Nappi 1976: BollSGeoIta95
Nappi 1976: Nature261
197511511:45
+14:30
uncertain major explosionBevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion)
---N+CSpine shaped ash clouds 800 and 900 m high

max. H = 1 km (?)
area 12.5 km2
Mean thick. 0.02 m

ashfall in the village lasting until 8/12
explosions threw lava fragments and scoriae to a maximum height of 700 m

cumulative products with 4/11--only ash fall and lava flow--yes, two lava flows started after the explosions

from 5/11/1975 to 24/11/1975

BVE 1975 - Nappi;
Nappi 1976: BollSGeoIta95
Nappi 1976: Nature261
1976-ordinary activity-----max. H = 0.3 km--------BVE 1976 - Nappi
1977-ordinary activity--------------BVE 1978 - Nappi
1978-ordinary activity--------------BVE 1978 - Nappi
1979-ordinary activity-----max. H = 0.5 km--------BVE 1979 - Nappi
1980-1989
YearMonthDayGMTType of eventPrevious catalogs
(characterization)
People affectedSeismicitySound/Air shockVentsAsh plume/falloutBallistic projectilesField surveyPumicesFiresMappedPhoto/videoHot avalancheLava flowMain References
1980-ordinary activity-----max. H = 0.5 km-------BVE 1980 - Nappi
1981-ordinary activity-----max. H = 0.4 km-------BVE 1981 - Nappi
1982-ordinary activity-----max. H = 0.2 km-------BVE 1982 - Nappi
1983-ordinary activity-----max. H = 0.4 km-------BVE 1983 - Nappi
1984-ordinary activity-----max. H = 0.7 km (?)-------BVE 1984 - Nappi
1985627uncertain major explosionFalsaperla&Spampinato, 2003
(explosive sequence);

Calvari&Nunnari, 2023
(major explosion)
-yes----------Falsaperla&Spampinato 2003
198512608:10uncertain major explosionBarberi et al. 1993; Bevilacqua et al. 2020
(major explosion);

Calvari&Nunnari, 2023 (paroxysm)
-microshock at 23:32 on 5/12; explosive phase between 7:45 and 8:10 on 6/12soundless explosionsNAn eruptive cloud, initially dark and ash laden, was seen to rise up to 2 km above the cone then becoming a plume of white steam

max. H = 2 km (?)
area 0.5 km2
Mean thick. 0.001 m
Volume: 5 x 10^3 m3

The eruptive plume, carried by the wind towards the east, produced and ashfall deposit a few mm thick on the upper part of the volcano
beginning of the effusive phase was preceded by minor explosions with the ejection of blocks, ash and vapours


ash blanket, observed on the morning of 8 December, was brownish in colour, fine-grained and slightly moist, although not adhesive on the ground. Millimetric aggregates of whitish ash were noticed in the marginal part of the area of dispersal as scattered whitish dots on the dark sandy ground.

bombs or blocks or fresh impact structures were absent
--only ash fall and lava flowphoto of the hot avalanchea small nuée ardente descended the NW flank's Sciara del Fuoco

composed mainly of old fumarolized material
newly formed eruptive trough, ~100 m long, developed from the easternmost vent (825 m asl) roughly NE down to 680 m asl

lava flow emerged at 680m.a.s.l.

from 6/12/1985 to 25/4/1986
BVE 1985 - Rosi&Sbrana;
SEAN - Rosi&Sbrana;
De Fino et al. 1987 - BollGNV
Rosi&Sbrana 1987 - RendItaPM42;
De Fino et al. 1988 - RendItaPM43;
BGVN; Stromboli Online;
Personal Comm. - Mauro Rosi
1986423?uncertain major explosionFalsaperla&Spampinato, 2003
(explosive sequence);

Calvari&Nunnari, 2023
(major explosion)
-yes-NPhreatomagmatic explosions occurred at the end of the intensive phase

max. H = 0.5 km
-------ongoingBVE 1986 - Nappi&Renzulli
1987-ordinary activity-----max. H = 0.5 km--------BVE 1987- Nappi&Renzulli
198883001:12major explosionBarberi et al. 1993; Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion);

Falsaperla&Spampinato, 2003
(explosive sequence)
-yes, published seismogram, "saturated"

strongest shock recorded at the Ginostra station and by all the seismographs of the Aeolian Islands Seismic Network
strongest explosion, which was felt to the inhabitants of the island-max. H = 0.5 km (?)it did not cause great morphological variations of the crater area or changes in volcanic activity

similarly to 26/3/89 and 18/6/90 it produced bombs and lapilli fallout on the volcano summit and on the Sciara del Fuoco
-------BVE 1988 – Nappi et al.;
Falsaperla&Villari 1991 - BollGeoTA32;
Coltelli&Cardaci 1994 - BollGeoTA36;
Langer & Falsaperla 1996 - PAGeoph147
19893700:51uncertain major explosionFalsaperla&Spampinato, 2003
(explosive sequence);

Calvari&Nunnari, 2023
(major explosion)
-yes, published seismogram

notable increment m the amplitude of volcanic tremor
-----------BVE 1989 - Nappi et al.;
SEAN - Falsaperla et al.
Falsaperla et al. 1989 - BollGNV;
Falsaperla&Villari 1991 - BollGeoTA32;
Falsaperla et al. 1994 - ActaVulc5
198932002:22uncertain major explosionFalsaperla&Spampinato, 2003
(explosive sequence);

Calvari&Nunnari, 2023
(major explosion)
-yes, published seismogram

notable increment m the amplitude of volcanic tremor
-----------BVE 1989 - Nappi et al.;
SEAN - Falsaperla et al.
Falsaperla et al. 1989 - BollGNV;
Falsaperla&Villari 1991 - BollGeoTA32;
Falsaperla et al. 1994 - ActaVulc5
198932607:27major explosionBarberi et al. 1993; Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion);

Falsaperla&Spampinato, 2003
(explosive sequence)
Tourists nearby were hit by the shower of tephra.

No one was directly injured, but a girl fell and broke her arm.
yes, published seismogram

notable increment m the amplitude of volcanic tremor
-NA grey to white eruption cloud was seen to rise up to 1 km above the Crater Terrace

max. H = 1 km (?)

ma. H (IIV) = 3 km
Lapilli and scoria were thrown up and distributed over a fan-shaped area to NE to S of the crater extending up to more than 1 km away

The incandescent material reached the height of 500-550 m above the Crater Terrace, falling beyond "Il Pizzo"
larger lithic blocks were spread out within an area of a few tens of meters from the crater. -Small fires broke out in the shrubby vegetation on the NE slope.-photos of the eruptive cloud and telephotos of the ballistic projectiles--BVE 1989 - Nappi et al.;
SEAN - Falsaperla et al.
Falsaperla et al. 1989 - BollGNV;
Falsaperla&Villari 1991 - BollGeoTA32;
Falsaperla et al. 1994 - ActaVulc5; BGVN; Stromboli Online
19894318:23uncertain major explosionFalsaperla&Spampinato, 2003
(explosive sequence);

Calvari&Nunnari, 2023
(major explosion)
-yes, published seismogram

notable increment m the amplitude of volcanic tremor
-----------BVE 1989 - Nappi et al.;
SEAN - Falsaperla et al.
Falsaperla et al. 1989 - BollGNV;
Falsaperla&Villari 1991 - BollGeoTA32;
Falsaperla et al. 1994 - ActaVulc5
1990-1994
YearMonthDayGMTType of eventPrevious catalogs
(characterization)
People affectedSeismicitySound/Air shockVentsAsh plume/falloutBallistic projectilesField surveyPumicesFiresMappedPhoto/videoHot avalancheLava flowMain References
199061815:12major explosionBarberi et al. 1993; Rosi et al. 2013; Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major esplosion);

Falsaperla&Spampinato, 2003
(explosive sequence)
-yes, published seismogram, "saturated"

6 shocks in a few seconds
Strong detonations were audible from the villagesCSdense ash cloud rose above the summit crater area and was visible from San Bartolo village

max. H = 0.5 km (?)
Ejecta fell onto the NW flank's Sciara del Fuoco The crater area (Il Pizzo) was visited during the morning of the following day and still hot scoriae were sampled

The wall between craters 2 and 3 collapsed
------BVE 1990 - Nappi et al.;
Falsaperla&Villari 1991 - BollGeoTA32;
Falsaperla 1991 - ActaVulc1;
Langer&Falsaperla 1996 - PAGeoph147;
BGVN - Riuscetti et al.
1991-ordinary activity-----max. H = 0.4 km--------BVE 1991 - Nappi et al.
199272001:13uncertain major explosionFalsaperla&Spampinato, 2003
(explosive sequence);

Calvari&Nunnari, 2023
(major explosion)
No danger or injured was reported.yes, five explosion-quakes

temporal increase in tremor amplitude, lasted a little bit less than 3 minutes

moderate energy release, only recorded at Ginostra
-----------BVE 1992 - Nappi et al.;
Coltelli&Cardaci 1994 - BollGeoTA36;
Falsaperla&Cardaci 1994 - ActaVulc6;
Langer&Falsaperla 1996 - PAGeoph147
19929105:00major explosionCalvari&Nunnari, 2023
(major explosion)
-unavailable-Ngrey eruption cloud, some hundreds of meters high, seen by S. Vincenzo

max. H = 0.5 km (?)
juvenile basaltic ejecta were thrown behind the "Pizzo"spatter cone grown in 1991 was destroyed

During summit visits on September 4-5 spindle-shaped scoriae up to 50 cm long were observed along the footpath just before reaching the "Pizzo" (850-900 m asl).
------BVE 1992 - Nappi et al.
199321016:10:major explosionFalsaperla&Spampinato, 2003
(explosive sequence);

Jaquet&Carniel, 2003
(violent explosion);

Rosi et al. 2013; Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion)
-yes, explosive sequence with 7 main events

followed by high-amplitude tremor that lasted for 8 minutes
-N"heavy" ashfall occurred about 2 km SW of the summit (Ginostra)

max. H = 1 km (?)

max. H (IIV) = 3-4 km
lateral blast of reddish lithic material

Lithic blocks and lava fragments fell to 1 km from the summit
A fire fountain of highly vesiculated magma took the place of the ash emission, forming a deposit of golden pumiceous spatters that blanketed the northern slope of Crater 1

ash fall samples collected on the southern slope near to the Ginostra village. The ash is coarse grained and red -brownish

10 kg bomb found at a site 0.3 km from the source
yes---hot avalanches in the Sciara del Fuoco leaving a block and ash deposit on the upper slope-BVE 1993 - Bonaccorso et al.;
Coltelli&Cardaci 1994 - BollGeoTA36;
Langer&Falsaperla 1996 - PAGeoph147;
BGVN - Falsaperla&Velardita;
Stromboli Online
1993101601:07major explosionFalsaperla&Spampinato, 2003
(explosive sequence);

Jaquet&Carniel, 2003
(violent explosion);

Rosi et al. 2013; Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion)
woman camper heavily wounded on the "Pizzo"

synthetic jacket ignited by hot bomb and lapilli fallout
Powerful explosive sequence

published seismogram, "saturated"

the eruption continued with a sequence of strong Strombolian explosions lasting about 10 minutes
Two sharp blows were heard by the inhabitants during the first minutesN+CSash fall in Piscità

Reddish ashes and dust fell on the NW slope of the volcano along the Sciara del Fuoco
trust of lithic material

bomb fallout up to 500 m from the vent. product dispersal affected the entire summit area
large blocks and spatters reaching two meters diameter. all over the summit, but also on the path leading up from Stromboli village and on the ridge west of the summit

most distant ejecta were observed at a horizontal distance of approximately 600 metres from crater 3

two pit depressions left on the crater bottom
not foundSome bushes caught fire along the slopesyes, map of the "fresh material"
(J. Alean)
several photos of cowpie bombs--BVE 1993 - Bonaccorso et al.;
Coltelli&Cardaci 1994 - BollGeoTA36;
Langer&Falsaperla 1996 - PAGeoph147;
BGVN - Calvari&Riuscetti;
Stromboli Online;
Personal communication - Pompilio
19931030?seismic sequenceFalsaperla&Spampinato, 2003
(explosive sequence);

Calvari&Nunnari, 2023
(major explosion)
-yes, only recorded at Ginostra

temporary increase in the tremor amplitude lasting several minutes
---neither eruptive activity was observed nor new products were found around the vents-------BVE 1993 - Bonaccorso et al.;
Coltelli&Cardaci 1994 - BollGeoTA36;
Langer&Falsaperla 1996 - PAGeoph147;
Falsaperla&Cardaci 1998 - ActaVulc10
1993114?seismic sequenceFalsaperla&Spampinato, 2003
(explosive sequence);

Calvari&Nunnari, 2023
(major explosion)
-yes, only recorded at Ginostra

temporary increase in the tremor amplitude lasting several minutes

published seismogram
---neither eruptive activity was observed nor new products were found around the vents-------BVE 1993 - Bonaccorso et al.;
Coltelli&Cardaci 1994 - BollGeoTA36;
Langer&Falsaperla 1996 - PAGeoph147;
Falsaperla&Cardaci 1998 - ActaVulc10
199464?uncertain major explosionFalsaperla&Spampinato, 2003
(explosive sequence);

Calvari&Nunnari, 2023
(major explosion)
-short sequence of powerful explosions -N+CSMinor ash fallout was found on the summit area large spatters fell up to 200 m from the vent

fire fountain
large spatter formed new spatter ramparts in both Craters 2 and 1

Very few lithic blocks layed around the vents

depressions formed in 16/10/1993 were completely filled
------Coltelli&Cardaci 1994 - BollGeoTA36
1995-1999
YearMonthDayGMTType of eventPrevious catalogs
(characterization)
People affectedSeismicitySound/Air shockVentsAsh plume/falloutBallistic projectilesField surveyPumicesFiresMappedPhoto/videoHot avalancheLava flowMain References
19953517:43major explosionFalsaperla&Spampinato, 2003
(explosive sequence);

Jaquet&Carniel, 2003
(violent explosion);

Rosi et al. 2013; Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion)
-yes, tremor intensity returned to a "normal" level immediately after the explosionthe explosion was strongly felt in the village of Stromboli-max. H (IIV) = 2-3 kmexplosion threw pyroclastic material high enough to be clearly seen from the village of Stromboliexplosion threw pyroclastic material towards Forgia Vecchia and Fossetta, a depression SW of the crater area

In Valletta litics of about 70 cm and bombs of about 1 m. Sampled scoriae on "Pizzo".
yes--surveillance camera at Pizzo installed in summer 1994--BGVN - Carniel et al.;
Stromboli Online;
Personal Communication - Pompilio
199551022:41major explosionFalsaperla&Spampinato, 2003
(explosive sequence);

Rosi et al. 2013; Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion)
-yes, published seismogram

fast succession of explosion quakes is clearly visible at the onset of the sequence

amplitude of tremor was sustained for several minutes, fading very gradually
---products included pumices.yes-----Falsaperla&Cardaci 1998 - ActaVulc10;
Personal Communication - Pompilio
199621623:58major explosionColtelli et al. 2000; Rosi et al. 2013; Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion);

Falsaperla&Spampinato, 2003
(explosive sequence);

Jaquet&Carniel, 2003
(violent explosion)
-yes, increased tremor amplitude lasting ~12 minutesbig blast at 23:57 local time woke up people in the villageCSdark column rose 200-300 m above the craters (?)incandescent bombs throw and red glow according to the description of the inhabitantsa large area 300 m wide and elongated toward S was covered by scoriaceous cowpie bombs, Pele's hair and fumarolised lithic blocks.

A portion of the products was formed by highly vesicular scoria.

No major change of the craters shape was observed after the eruption, but the vent that produced these materials was probably in Crater 2 or 3
not found-----Coltelli et al. 2000 - ActaVulc12;
BGVN - Carniel&Coltelli;
Stromboli Online;
Personal Communication - Pompilio
19966121:47major explosionColtelli et al. 2000; Rosi et al. 2013; Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion);

Falsaperla&Spampinato, 2003
(explosive sequence);

Jaquet&Carniel, 2003
(violent explosion)
More than twenty tourists were visiting the summit.

Some reported light burns caused by lapilli fallout.

Seven tourists were sleeping near the summit, and four got injured.
yes, published seismogramEyewitnesses in Stromboli village reported on a single strong explosion

the explosion was clearly heard and seen from the village of Stromboli
Nmax. H (IIV) = 2 kmfallout of red bombs on the upper northern slope

The ejected material completely covered the summit, falling more than 500 m away toward S and E and reaching the vegetation 1,000 m in the N sector.

very large blocks thrown to a considerable distance from the craters, especially into the zone of the "Canneto", uphill from the village of Stromboli-San Bartolo
the explosion occurred at Crater 1.

The chain of hornitos inside this crater was blown out, leaving a large deep depression in the north side of the crater floor.

The deposit was made of black scoriaceous bombs, covered by Pele's hair, reddish blocks, and a minor amount of ash.

On the "Pizzo'' (250 m SE from the craters), the falling bombs were 10-50 cm in size and covered the area with a density of 3-4 bombs per m2
not foundIncandescent bombs fell on vegetation, causing a fire that was extinguished by Civil Defense aircraft in the late morning of June 2yes, map of the bombs towards NE (P. Cottens )photo of the fires--Coltelli et al. 2000 - ActaVulc12;
Stromboli Online;
Personal Communication - Pompilio
19966604:52major explosionColtelli et al. 2000; Rosi et al. 2013; Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion);

Falsaperla&Spampinato, 2003
(explosive sequence)
-strong seismic event from Crater 1 occurred and lasted ~1 minute-Nash column to a few hundred meters high

ash emission lasted ~2 minutes
bomb fallout on the Sciara del Fuoco

very fast gray-brown jet that ascended at ~30 m/second at the upper limit of the camera view; most of the bomb and block fallout was behind the camera
All pyroclastic materials fell close to the craters but during the larger explosion some bombs were thrown a few hundred meters from the vents---surveillance camera record located at Pizzo

camera had been restored two days earlier
--Coltelli et al. 2000 - ActaVulc12;
BGVN – Coltelli&Fulle
19969413:43major explosionColtelli et al. 2000; Rosi et al. 2013; Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion);

Falsaperla&Spampinato, 2003
(explosive sequence);

Jaquet&Carniel, 2003
(violent explosion)
some tourists were caught by the explosion in the crater area and six of them were slightly injured.

After this, the Mayor of Lipari ordered the closure of the path to the craters
-the explosion was clearly heard and observed from the village of StromboliN+CSblack eruptive column, lasted about 45 seconds, that reached about 1 km of altitude above the crater

max. H (IIV) = 3-4 km
blast of a bubble of viscous magma that expanded over the northernmost part of the crater causing the radial fallout of large spattersThe areas close to the craters and the flanks of the volcano (to 700 m a.s.l.) were completely covered by scoriaceus and pomiceus bombs and fumarolised lithic blocks (about 500 m from the craters)

BS covered the entire summit area with a maximum in dimension (up to 2 m) and density in the E and NE sector, whereas lighter B were blown and fallen in the eastern side of the crater in an area more than 100 wide and stretched towards NE

between Pizzo sopra la Fossa and la Fossetta many fumarolized lithic blocks, up to 1 m large, were concentrated

the small hornito in Crater 1 was destroyed as well that one in Crater 3
yesScoriaceous hot bombs and lapilli fell in lower parts of the volcano causing also some firesyes, map of lapilli and bombs (Coltelli et al.)surveillance camera record

damaged by products

photos of the column and of the fires
-intermittent lava flow started 7 days after the event, probably rheomorphic

from 16/9/1996 to 20/9/1996
Coltelli et al. 2000 - ActaVulc12;
BGVN – Carniel et al.;
Stromboli Online
1997-ordinary activity-------------Unavailable regular reports
199811610:11major explosionBertagnini et al. 1999; Rosi et al. 2013; Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion)

Jaquet&Carniel, 2003
(violent explosion);
---Nmax. H (IIV) = 3 km-«usual» pyroclastic material had fallen in the neighbourhood of the craters

Products distributed between the last "fortino" of STR and the first of GIN. Mostly red lithics and juvenile blocks scarsely vesiculated. Few Pele hair. Rain washed away any ash. One bomb of 1m on "Pizzo" close to the camera.
-rain extinguished any wildfires----Bertagnini et al. 1999 - Eos80;
BGVN - Carniel&Alean;
Stromboli Online;
Personal Communication - Pompilio
199882315:26major explosionBertagnini et al. 1999; Rosi et al. 2013; Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion)

Falsaperla&Spampinato, 2003
(explosive sequence);

Jaquet&Carniel, 2003
(violent explosion)
although a high number of tourists were on the island, no one was hurt

The authorities immediately blocked public access to the upper part of the volcano.
yes, published seismogram

RD = 85 cm2, 6 min

two consecutive strong explosions
-N+CSAsh column rising a few hundred meters above the summit

sustained jet at the base and a convective top region, rose up to 1 km above the vent

light ash cloud is reported after the first dark column, and small lapilli fell over the village of Ginostra
Tracks of large blocks moving radially out from the northern side of Crater 1 at a speed close to 100 m/s were recorded

Dispersal of the erupted products showed two lobate fallout areas.

The lobe stretching north-northeast was formed of scattered black spatters.

The second, an east-southeast trending lobe, was formed of an almost continuous deposit of light-golden pumice, varying in size from bombs 1 m across to fibrous lapilli.

bombs on the tourist path down to an altitude of 750 m a.m.s.l. In other directions the bombs fell as low as 500 m a.m.s.l.

Ginostra was not affected significantly
Scoriae and black spatter with Pele hair, max. dimension 30-40 cm, were observed above Vallonazzo at 670 to 790 m
max. clasts / m2 = 2

At 790 m asl scoriaceous clasts were associated to unaltered blocks, some covered by scoriae. These weren't found on the path towards the elipad.

Great black spatters (up to 1 m) fell 50-100 m toward the craters. Yellow pumices between elipad and the craters (up to 20-30 cm size hypothesized before impact).

At Pizzo found fine products - millimetric pumice ash and scoriacoeus black lapilli (max. 5-6 cm). Yellow pumices diminished towards SW from Pizzo to crater 3 and disappear at first "fortini" of Ginostra (890 asl).

Metric spatter rich in pumice some mixed, become continuous on the ESE side of crater 3. This is interrupted sharply towards S.

Yellow pumice fell towards ESE (Rina Grande) up to the beach below "Schicciole" - max. clasts 4-5 cm. Blocks up to 1m size were found from the elipad to the ridge towards crater 3 and on the N side of Fossetta. They were from some meters to tens of meters distant.

The explosion also caused significant morphological changes to the rim of Crater 1 towards Semaforo Labronzo.
yesSeveral fires were started in the vegetation on the upper volcano slopes (the biggest one, near Forgia Vecchia, was stopped only the following day).

Another one in Vallonazzo.
yes, map of the products (Bertagnini et al.)surveillance camera record and published screenshots

photos of the eruptive column
--Bertagnini et al. 1999 - Eos80;
BGVN - Carniel&Alean;
Stromboli Online
GNV report - Rosi et al.
19989817:13major explosionBertagnini et al. 1999; Rosi et al. 2013; Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion)

Falsaperla&Spampinato, 2003
(explosive sequence);

Jaquet&Carniel, 2003
(violent explosion)
Ten people were in the summit area: five were at Pizzo, five including the guide (Mario Zaia) were at the "fortini" of Bastimento, 750 m asl. No one was wounded.yes, published seismogram

RD = 117 cm2, 11 min
strong detonation

considerable atmospheric shock wave was reported at the village of Stromboli, and broken windows were reported near San Bartolo
N+CSdark column rose 1 km above the craters

second column of similar H after 1 minute
Bombs and lapilli fell and roll in Sciara del Fuoco, on the NE slope (Bastimento) above 500 asl, and on the E slope (Rina Grande)

Bombs over Pizzo
Crater 1 was enlraged and broken on the NE side. Other craters did not change significantly.

Products affected two sectors of the summit area and Sciara del Fuoco. Two lobes observed are probably related to the craters' morphology.

First sector was 200 m wide region towards NE for slightly less than 1 km to the zone of fortini of Bastimento.

Second sector was 400 m wide from elipad to Fossetta and towards ESE to Rina Grande. In both sectors products were lapilli and dark scoriaceous bombs (cowpie bombs or stripes).

Not found lithics or yellow pumices.Greatest bombs (>1.5 m) fell between elipad and the transmitter of the IIV camera.
not foundTwo fires. The first greater at 500-600 m asl between Vallonazzo and Cannestrà.

The second at similar elevation between Schicciole and Le Mandre.
-surveillance camera record and published screenshots

photo of flying ballistics from Labronzo trail

photos of the fires and of the column

photo of large spatter at 500 m from the vent
--Bertagnini et al. 1999 - Eos80;
BGVN - Carniel&Alean;
Stromboli Online
IIV report - Pompilio
199891805:37seismic sequenceFalsaperla&Spampinato, 2003
(explosive sequence);

Calvari&Nunnari, 2023
(major explosion)
-yes

RD = 15 cm2, 12 min
----Ash explosion. Ash in Scari beach and between elipad and Pizzo. Max close to the fumaroles. Sampled lapilli from the summit and ash from the roof of COA.------Falsaperla& Spampinato 2003 - JVGR125;
Personal Communication - Pompilio
1998112417:00major explosionBertagnini et al. 1999; Rosi et al. 2013; Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion)

Falsaperla&Spampinato, 2003
(explosive sequence);

Jaquet&Carniel, 2003
(violent explosion)
-yes, published seismogram

RD = 30 cm2, 15 min
two bangs separated by 5-8 seconds

The explosion was not very loud. One of the bangs made the doors and windows tremble
Nlittle ashfall over the villagepyroclasts clearly seen from the village, reaching estimated heights of at least 700 m over the craters

single large blast formed a 300 m high globe of red material followed by two pulses of 150 m high lava spattering, each lasting about 20 s.

mountain was incandescent red, for about 15 minutes
the volcano guide Zazà climbed the volcano. He found all the summit covered by yellowish pumice

Bombs ejected during the main explosion were mainly pumice, sampled by P. Landi.
yes-----Bertagnini et al. 1999 - Eos80;
BGVN - Harris et al.;
Falsaperla& Spampinato 2003 - JVGR125
Stromboli Online;
Personal Communication - Pompilio
1998122614:55uncertain major explosionBertagnini et al. 1999; Rosi et al. 2013; Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion)

Falsaperla&Spampinato, 2003
(explosive sequence);

Jaquet&Carniel, 2003
(violent explosion)
-yes

RD = 19 cm2, 9 min
-CS300 m high ash plume formed above the fountain, and lapilli fell on the village of Ginostraa 150 m high lava fountain rose from Crater 3 for 40 s-not found-----Bertagnini et al. 1999 - Eos80
1998122801:42uncertain major explosionBertagnini et al. 1999; Rosi et al. 2013; Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion)

Falsaperla&Spampinato, 2003
(explosive sequence);

Jaquet&Carniel, 2003
(violent explosion)
-yes

RD = 32 cm2, 18 min
-N+CS-single blast from Crater 1 was followed by two lava fountains, one from Crater 1 and one from Crater 3

pyroclasts seen from the village, reaching estimated heights of at least 500 m over the craters
-not found-----Bertagnini et al. 1999 - Eos80;
BGVN - Harris&Pirie
199931306:22seismic sequenceFalsaperla&Spampinato, 2003
(explosive sequence);

Calvari&Nunnari, 2023
(major explosion)
-yes

RD = 21 cm2, 12 min
-CS--Metric bomb sampled at the base of crater 3/1. Mixed scoriaceous bombs at the other side too. scoria of mixed composition-----Falsaperla& Spampinato 2003 - JVGR125;
Personal Communication - Pompilio
19994903:00uncertain major explosionJaquet&Carniel, 2003
(violent explosion);

Calvari&Nunnari, 2023
(major explosion)
-The seismic station recorded an event with greater than usual energy, which may have been from one of the explosionstwo strong blasts at about 03:00, separated by a few minutes

people woke up in Ossidiana Hotel

Bad weather did not allow observation of the summit area
--------BGVN – Harris&Pirie;
Stromboli Online
199982522:56major explosionFalsaperla&Spampinato, 2003
(explosive sequence);

Jaquet&Carniel, 2003
(violent explosion);

Rosi et al. 2013; Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion)
the evening tourist group descended the volcano and the night group was still climbing

Ten tourists received injuries, mostly because of the sudden run from the craters.

A total of seven people were on the summit

One woman's hand was hit by scoriae. A girl suffered minor burns on her feet and hands. On the other side of Pizzo another person suffered burns on his belly.
yes

RD = 124 cm2, 10 min
-N+CStephra fell over a wide areaa typical explosion preceded a more intense one. Next, a larger explosion came from the vent in front of Crater 2

Pyroclastic material was clearly visible from the village and fell over a wide area, including the path section with the observation points around the 700-m level

Also much "cold" material was ejected
numerous scoriaceous bombs on and around the Pizzo sopra la Fossa had flattened upon impact; many had diameters of 20 cm or more. In one case, a bomb had fallen on the rim of one of the primitive shelters made by tourists in the summit area

greatest bomb over Pizzo was 50 x 30 cm.
-Danielle Cottens saw some small fires from Scari.----BGVN - Carniel et al.;
Stromboli Online
1999101020:00uncertain major explosionJaquet&Carniel, 2003
(violent explosion);

Calvari&Nunnari, 2023
(major explosion)
tourist groups climbing the volcano decided to go back

The worst damage seems to be a burnt knapsack
----a significant explosion occurred that ejected ash and scoria onto Pizzo and in the Fossetta-------BGVN - Carniel et al.;
Stromboli Online
19991116?uncertain major explosionFalsaperla&Spampinato, 2003
(explosive sequence);

Calvari&Nunnari, 2023
(major explosion)
-yes-----------Falsaperla& Spampinato 2003 - JVGR125
1999122215:30uncertain major explosionFalsaperla&Spampinato, 2003
(explosive sequence);

Calvari&Nunnari, 2023
(major explosion)
-yes

RD = 33 cm2, 6 min
----9 June 2000 - Scoria sampled close to "fortino verso Ginostra". Quite fresh and with impact traces nearby. ------Falsaperla& Spampinato 2003 - JVGR125;
Personal Communication - Pompilio
2000-2004
YearMonthDayGMTType of eventPrevious catalogs
(characterization)
People affectedSeismicitySound/Air shockVentsAsh plume/falloutBallistic projectilesField surveyPumicesFiresMappedPhoto/videoHot avalancheLava flowMain References
20007407:35uncertain major explosionJaquet&Carniel, 2003
(violent explosion);

Calvari&Nunnari, 2023
(major explosion)
-yestwo explosions separated by 1-2 seconds.-Small amount of ash observed.-------intracrateric lava flow occurred between 6/2000 and 5/2001BGVN - Harris et al. (a)
20009603:54uncertain major explosionJaquet&Carniel, 2003
(violent explosion);

Calvari&Nunnari, 2023
(major explosion)
-yes, published seismogram (3 mins)a violent eruption woke up the population-The ash cloud from the eruption rose to at least 1 km in altitudethe eruption was in "a vertical direction". Therefore, no fresh bombs were found on Pizzo------possiblyBGVN - Harris et al. (a);
Stromboli Online
2001102000:30major explosionJaquet&Carniel, 2003
(violent explosion);

Rosi et al. 2013; Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion)
Dozens of people were on "Pizzo" when the explosion occurred. Other were on Vancori ridge.

Two injured people; a German woman, was hit on her head, and died a few days later
yes, published seismogram (3 mins)Nino Zerilli reports that he got woken up by the explosion N+CS-crater 1 produces intense explosions but products are confined in crater terrace

crater 3 ejects several incandescent blocks outside crater terrace

fishermen saw, from a distance, glowing rocks ejected by the volcano
Field survey ca. 12 hours after the explosions. Impact craters and lithic blocks, also altered and fumarolized, ca. 20-30 cm size, are observed on the ridges of "Pizzo" towards W and E. Max. density of 1-2 blocks / m2.

Max. density and size between "Pizzo" and first "fortini verso Ginostra". To the West some dark vesciculated blocks (max 40 cm) maybe juvenile. Significant morphological changes of crater 3.

At 750m s.l.m. was found a block of 1,2 x 0,6 m - still hot a few hors after the event. Other bombs (ca. 20 - 70 cm) found later in Rina Grande, on the trail.

A survey by elicopter two weeks after the event. In the NE sector (area Bastimento-Liscione) there are lithic blocks. Also scoriceous bombs juvenili (max 0.3 m). Larger and more frequent clasts (1 every 2-3 m2; max 0.6 m) are observed between 730 and 800 m s.l.m. close to the seismic station of Univ. Udine. Not observed products on the trail below the elipad.
not foundyes, towards NE - E side of "Bastimento"

approx. 600 m.a.s.l. Two areas on fire separated from each other by 200m.
yes, two maps of the bombs towards SE and NE (Calvari&Pompilio)surveillance camera record located at Pizzo (published photogram)

thermal camera recorded hot products on the south side of crater 3 and up to the saddle below "Pizzo"
--INGV report: Calvari&Pompilio 2001a;
INGV report: Calvari&Pompilio 2001b;
BGVN – Barberi et al.;
Stromboli Online
200212319:54major explosionRosi et al. 2013; Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion)
--The noise from the explosion has been heard from all the villages in the islandN+CSash fallout which lasted several minutes (ca. 15 min)-In the morning of 24 Jan. - the field survey was carried out in the area of Il Pizzo Sopra la Fossa between the Bastimento and La Fossetta. This part of the volcano was covered with ash and blocks. Lithic material up to 60 cm in size, with minor amount of spatter up to 1.7 m in lenght.

The greater density of lithics on the ground in a belt about 200 m wide between the craters and Il Pizzo. Spatter was more frequent NE of Il Pizzo. Fine-grained material covered the crater zone and the NE flank of the volcano up to the village of Stromboli (2 km far). In the zone of Il Pizzo the fallout material formed an almost continuous carpet.

First isolated juvenile clast max. 10 cm 820 asl. At elipad shelters sparse blocks and large dark scoriae - one of 60 cm broke the edge of elipad. At about 20 m from elipad to "Pizzo" large spatter 60x170x7-10 cm. At 900 m elevation, many blocks and some scoria up to 20x30 cm. Lithics <20 cm up to 40 cm. Clasts also above this elevation. Blocks <10 cm on average, some of 16-18 cm and max. 60-70 cm. A few scoriae: one of 15-30 cm every 2-3 feet plus some smaller.

Density of clasts - climbing path to "Pizzo" over 4x4 m: 10 clasts <10cm; 10 clasts ~15 cm. Pizzo - 1.1*1.1 m: 58 lithic clasts of 2-5 cm; 4 lithic clasts of 10-12 cm; 5 lithic clasts of 5-8 cm; 5 juvenile clasts of 4-5 cm; 4 juvenile clasts of 7-10 cm. Lithics suddenly decrease towards "Fortini di ginostra" (one block every few meters) and stop at 300 m to W- SW from Pizzo. Sparse scoriae (1 every 20-25 m).

Rina Grande – several 1 m sized impacts up to 720 m asl (one with a block of 60 cm inside, most are empty). Blocks found at the base of Rina Grande.
not foundyesyes, towards E and S (Calvari et al.)Fallout of this eruption damaged the webcam of INGV - CT and a geochemical station of GNV

thermal camera recorded hot products

photo of scoria on "Pizzo"
--INGV report: Calvari et al. 2002;
INGV report: Andronico 2002;
BGVN – Calvari et al.;
Personal Communication - Landi
200272405:45major explosionRosi et al. 2013;
Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion)
4 other people were descending through Forgia Vecchia. Nobody was hurt. yesloud detonation was heard in the village of Stromboli, no noise was noted at the village harborN+CSash column some hudreds of meters high seen from the village (500 m above the summit)

light ash fell over the harbor area and on a number of nearby vessels
several rocks, including rather big ones, were tumbling down the slope in Rina Grande. The rocks were stopped by the soft ash of Forgia Vecchia and did not reach the beach. Elicopter survey one day after the event with thermal camera - not observed crater changes or hot products.

Ground survey a week after the event. On the ground dark scoriaceous bombs and lapilli, lithic blocks fumarolized, and yellow pumice lapilli. Higher concentration between elipad and "Pizzo"

Close to the geochemical station an impact crater of ca 1 m due to a scoriceous comb of > 50 cm, and other impact craters of similar size, but due to blocks. No fresh material found on "Pizzo". Lapilli, ash and some dark bomb is found between crater 3 and Pizzo - maybe erupted by ordinary activity. Very few morphological changes of the craters except for a small collapse on crater 3.
yes-yes, a week later (Pompilio&Coltelli)thermal camera from helicopter

explosion was observed (and photographed) from the harbor of the village of Stromboli
--INGV report: Burton et al. 2002;
INGV report: Pompilio&Coltelli 2002;
BGVN – Behncke;
Stromboli Online
20034507:12paroxysmRosi et al. 2013; Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(paroxysm)
-yes, great amplitude, published seismogram

amplified tremor continues for 15 mins

another weaker explosion recorded at 23:30 GMT.
strong explosion clearly heard by all inhabitants N+CSeruptive plume 1150m above craters

pumice fallout up to 20cm at Punta Lena - clast density of 3-4 bombs every m2

abundant ash emission
prevalently lithics but abundant pumice; abundant corse products on the NE slopes above 400 m asl. Also, lower elevations reached on the W side. Ginostra village affected by large lithic bombs which severaly damaged two houses

Lava field at 590 m asl and upper Sciara del Fuoco is buried by the explosion products. Lava pierces through a few minutes later

all summit above 700 m asl is continously covered by products

products of explosion at 23.30 GMT expanded to Bastimento and Pianoro.
elicopter survey during the event.

Field survey nine days after the event - between elipad, Pizzo and beyond there is a continous cover of pumiceous bombs and lothic blocks., both fresh and altered. Summit trails are obliterated and "fortini" are partially buried. Average thickness is 10-30 cm. MAx. size of the bombs is 60 cm, blocks are 20-30 cm on average, max. 50 cm; bombs/blocks ratio is 1:10.

Massive bomb (ca. 3-4 m) and impact crater on Bastimento (600m from craters)
yesyes, several fires on the NE flankyes, map in Rosi et al. 2006thermal and visible camera from elicopter

monitoring stations on upper Sciara and Pizzo destroyed by the event
several debris flows in Sciara del Fuoco

pyroclastic flow on "Pianoro", under "Bastimento"
ongoingINGV - daily updates on the current eruptive phenomena;
Rosi et al. 2006 - EPSL243;
Calvari et al. 2006 - JVGR143;
Pistolesi et al. 2008 - GMS AGU182;
Stromboli Online
20043302:13uncertain major explosion--yes, published seismogram (4 mins)

significant amplitude
-N+CS-scoriae up to 200 m above craters

fallout of fresh bombs and lapilli on Il Pizzo Sopra la Fossa in early March
-------BGVN -Calvari&Holliday;
Stromboli Online
200461102:16seismic sequenceAndronico et al. 2008 (strong explosion)Volcanological guide Mario Zaia was staying on "Pizzo" but the products did not reach it.published seismogram

weak amplitude
(8 mins)
-CS-products reached >100 m above cratersMario Zaia did not observe products on Pizzo.---Published surveillance camera photograms (Pizzo)--INGV - daily updates on the current eruptive phenomena;
INGV - surveillance camera report;
Stromboli Online;
Personal Communication - Spampinato
200491604:07seismic sequenceAndronico et al. 2008 (strong explosion);

Calvari&Nunnari, 2023
(major explosion)
-published seismogram

weak amplitude
(5 mins)
-CS-products reached 200 m above craters and covered crater terrace and its outer slopes.

destroyed hornito
----Published surveillance camera photograms (Pizzo)--INGV - daily updates on the current eruptive phenomena;
INGV - surveillance camera report;
Stromboli Online;
Personal Communication - Spampinato
2004112419:48seismic sequenceAndronico et al. 2008 (strong explosion);

Calvari&Nunnari, 2023
(major explosion)
-published seismogram

weak amplitude
(1 min)
-CSash cloud towards S
(30 s)
products affect central sector of crater terrace

partially destroyed new hornito
----Published surveillance camera photograms (Pizzo)--INGV - daily updates on the current eruptive phenomena;
INGV - surveillance camera report;
Stromboli Online;
Personal Communication - Spampinato
200412710:08seismic sequenceAndronico et al. 2008 (strong explosion);

Calvari&Nunnari, 2023
(major explosion)
-published seismogram-CS-products affect central sector of crater terrace

low visibility
-------INGV - daily updates on the current eruptive phenomena;
INGV - surveillance camera report;
Personal Communication - Spampinato
200412910:02seismic sequenceAndronico et al. 2008;
Calvari&Nunnari, 2023
(major explosion)
-yes (3 mins), greater than daily average

published seimogram
-CSash column lasting for about a 1 minproducts covered crater terrace and its ENE outer slopes, remaining hot and visible for a few minutes on the thermal camera----Published surveillance camera photograms (Pizzo)maybe associated to a small collapse in Sciara del Fuoco-INGV - daily updates on the current eruptive phenomena;
INGV - surveillance camera report;
Personal Communication - Falsaperla
2005-2009
YearMonthDayGMTType of eventPrevious catalogs
(characterization)
People affectedSeismicitySound/Air shockVentsAsh plume/falloutBallistic projectilesField surveyPumicesFiresMappedPhoto/videoHot avalancheLava flowMain References
20051910:32seismic sequenceAndronico et al. 2008;
Calvari&Nunnari, 2023
(major explosion)
-yes, >1 min, greater than daily average

slightly weaker intensity than other similar events
-CSThe explosive event of 9 January lasted about 45 s

Two violent explosions both followed by 100–120 m high jets of gas, ash and incandescent fragments, from two different vents located in the south-western sector of the crater terrace.
Bombs and lapilli thrown out by the first explosion mainly fell on the SE slopes of the crater terrace. Products of the second explosion were dispersed to the NW Scoria lapilli (multi-clast sample: ST500) and one 20 cm-large scoria bomb (ST501), erupted during the first explosion, were collected few days after the event in the “Fossetta”, just 40-50 m from the crater rim scoria of mixed composition--Published surveillance camera photograms (Pizzo)--INGV - daily updates on the current eruptive phenomena;
INGV - surveillance camera report;
INGV - petrologic monitoring report;
Landi et al. 2008 - JVGR174;
Andronico et al. 2008 - JVGR176;
Personal Communication - Spampinato
200532322:31seismic sequenceAndronico et al. 2008 (strong explosion);

Calvari&Nunnari, 2023
(major explosion)
-published seismogram
atypical event

weak amplitude,
9 mins
-N-lava fountain 200 m high (10 s)

products fell in the crater terrace
----Published surveillance camera photograms (Pizzo)--INGV - daily updates on the current eruptive phenomena;
INGV - surveillance camera report;
Personal Communication - Spampinato
Stromboli Online
20055910:36seismic sequenceAndronico et al. 2008 (strong explosion);

Calvari&Nunnari, 2023
(major explosion)
-7 mins, "greater" amplitude

published seismogram

preceded by weak sequence of explosions on 5/5
-N+CSash plume to the NNWlava fountain 200 m high (15 s)

explosion of 12 s; products fell in the crater terrace

destroyed hornito
----Published surveillance camera photograms (Pizzo)--INGV - daily updates on the current eruptive phenomena;
INGV - surveillance camera report;
Personal Communication - Spampinato
20058511:08major explosionRosi et al. 2013;
Andronico et al. 2008 (strong explosion);

Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion)
-yes, 3 mins

VLP = 7x daily average

published seismogram
-CSstrong wind

ash column 350 m high, towards SSE
products higher than 200 m and fell behind the camera

ballistics affect the S sector of crater terrace and towards "Pizzo"

ash and ballistics up to 40 cm fell on Rina Grande
Field survey a few hours after the event. Wind plausibly influenced the distribution, and affected S to SE - from "Valle della Luna" to "Rina Grande". Mapped dispersion may be underestimated.

light-colored lithic clasts and fragments not vesiculated, and a few dark and vesciculated lithics. Size from 4 to 40 cm.
not foundseveral fires in Forgia Vecchiayes, map by Salerno&MurèPublished surveillance camera photograms (Pizzo and 400 m asl)

photos of the ash column and the fires from Rina Grande; foto of blocks in Valle della Luna
--INGV - daily updates on the current eruptive phenomena;
INGV - surveillance camera report;
INGV report - Salerno&Murè;
Stromboli Online
2005111206:24seismic sequenceAndronico et al. 2008 (strong explosion);

Calvari&Nunnari, 2023
(major explosion)
-Yes; published seismigram

increased tremor

Preceded by probable volcanotectonic event on 30/10
-N+CS-explosion of incandescent material 150 m high (10 s)

products fell in the crater terrace
----Published surveillance camera photograms (Pizzo)--INGV - daily updates on the current eruptive phenomena;
INGV - surveillance camera report;
Personal Communication - Falsaperla
200652222:38seismic sequenceAndronico et al. 2008;
Calvari&Nunnari, 2023
(major explosion)
-yes

VLP = 5x daily average

preceded of two hours by a probable volcanotectonic event
-Nash cloud 400 m high (30s), to NNEsome fragments reached the sector SW to the crater terrace----Published surveillance camera photograms (Pizzo and 400 m asl)--INGV - daily updates on the current eruptive phenomena;
INGV - surveillance camera report;
INGV - petrologic monitoring report
200661613:41seismic sequenceAndronico et al. 2008 (strong explosion);

Calvari&Nunnari, 2023
(major explosion)
-yes

VLP = 10x daily average
-CSash cloud 400 m high (40s), to ESEproducts fell in the crater terrace and upper Sciara del Fuoco

destroyed hornito and new depression
----Published surveillance camera photograms (Pizzo and 400 m asl)maybe associated to a small collapse in Sciara del Fuoco-INGV - daily updates on the current eruptive phenomena;
INGV - surveillance camera report
2006101619:11seismic sequenceAndronico et al. 2008 (major explosion)-yes-CS-products also ejected outside the camera view and covered most of the crater terrace and upper Sciara del Fuoco----Published surveillance camera photograms (Pizzo and 400 m asl)--INGV - daily updates on the current eruptive phenomena;
INGV - surveillance camera report
2006121512:29uncertain major explosionRosi et al. 2013; Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion)
-yes (80 s)

VLP = 2x daily average
air wave much more intense than other explosion-quakes----------INGV - daily updates on the current eruptive phenomena
200731520:37paroxysmRosi et al. 2013; Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(paroxysm)
-yes, preceded by an ULP event

published seismogram
-N+CSeruptive cloud towards W and S producing ash and lapilli fallout over Ginostra

main dispersal axis WSW

coarse reddish sand covered by fine ash. Also yellow pumiceous lapilli (max. size ca. 3 cm excluding outliers). Greater concentrations in Ginostra - 3.5 kg/m2 of fallout in the harbour.
bombs and blocks of metric size ejected at about 100 m/s speed

ballistics reached lower elevations towards N and E, above Stromboli village
Elicopter survey 12 hours after the event, with thermal camera. New deposit on "Pianoro" under "Bastimento".

Field survey from Labronzo to Cannestrà, many lithic blocks up to less than 300 m asl. These blocks are often associated to metric impact craters and small collapses.

Greater concentrations of clasts over a stripe towards S. Bartolo village - some are below 250 m asl.
yessome small fires at "Le Schicciole", below Rina Grandeyes, two maps - by Pistolesi et al. 2011, and by Andronico et al. 2013 Surveillance camera on Pizzo damaged by the event

photos of lithic blocks at low elevation
two hours after the event was recorded the seismic signal of a small summit collapseongoing lava flow

from 27/2/2007 to 2/4/2007
INGV report - Andronico et al.;
Martini et al. 2007 - AnnGeoph50;
Barberi et al. 2009 - JVGR182;
Pistolesi et al. 2011 - JGR116;
Andronico et al. 2013 - BullVolc75;
INGV - daily updates on the current eruptive phenomena
200822902:17major explosionRosi et al. 2013;
Calvari et al. 2014; Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion)
-yes, filtered wave forms published

dilatometer anomaly ten times less than 15/3/2007

VLP = 7x daily average
-CS-strongest event since the paroxysm

lava fountain 180m high (50s)

products fell in the crater terrace, significantly outside the crater terrace towards N, and in the upper Sciara del Fuoco
-not found--Published surveillance camera photograms (Pizzo and 400 m asl)--INGV - daily seismic report;
INGV - surveillance camera report
20087905:40seismic sequenceCalvari et al. 2014; Calvari&Nunnari, 2023
(major explosion)
-yes (2 mins)

VLP = 5x daily average
-CSdense ash cloud 300 m high, towards Eproducts prevalently fell in the crater terrace (< 100 m high)

destroyed hornito
-not found--Published surveillance camera photograms (Pizzo and 400 m asl)--INGV - daily seismic report;
INGV - surveillance camera report
200812620:49major explosionRosi et al. 2013;
Calvari et al. 2014; Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion)
-yes (1 min)

VLP = 7x daily average

dilatometer anomaly 3x 29/02/2007

published seismogram
-CS-climactic explosive sequence of 15 s

products radially fell outside the crater terrace (> 300 m high) and towards Sciara del Fuoco
products reached metric size. At "Pizzo" a scoriceous bomb was sampled not found--Published surveillance camera photograms (400 m asl)

Surveillance camera on Pizzo is almost blinded by clouds
--INGV - daily seismic report;
INGV - surveillance camera report;
INGV - petrologic monitoring report
2008121713:32seismic sequenceCalvari et al. 2014; Calvari&Nunnari, 2023
(major explosion)
-yes

VLP = 5x daily average

published seismogram
-CS---------INGV - daily seismic report;
Calvari et al. 2014 - BullVolc76
20095314:58major explosionRosi et al. 2013;
Calvari et al. 2014; Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion)
-yes, 2 mins followed by 15 mins tremor-CSash emission followed the explosion

eruptive column moved towards ENE, reaching Stromboli village. A strong storm washed away the products a few hours later.

the fallout deposit included yellow pumiceous lapilli up to 5-6 cm
strongest event since the paroxysms

two lobes of coarse products reaching 200 m height mostly fell inside crater terrace and also outside its NW sector

then a second more intense explosion radially ejects ballistics over the whole camera range
metric dark spatter bombs are found around crater terrace, including the sector between Pizzo and the craters (also, one lithic clast every 5-10 meters) and towards the site where "fortini di Ginostra" were once located

the limit of coarser products is a few tens of meters below "Pizzo", slightly below 900 m asl, where there are bombs of 30-40 cm

upper Sciara del Fuoco appeared continuously covered, but ordinary activity also affects that sector
yes-mapped by AndronicoPublished surveillance camera photograms (Pizzo and 400 m asl)

photos of metric and decimetric clasts near "Pizzo"
-small lava flow (intracrateric)

other similar flows on 22/4/2009 and 17/5/2009
INGV - daily seismic report;
INGV - surveillance camera report;
INGV report - Andronico;
LaFelice&Landi 2011 - BullVolc73
200911812:28major explosionRosi et al. 2013; Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion)
-yes - increased tremor for 15 mins

dilatometer anomaly 2x 05/03/2009
-CSTephra fallout was dispersed E-NEastwards along a relatively
narrow, elongated area of the volcano within a distance of 2.5 km from the craters.

The intermediate and distal wind-blown tephra deposit between the S limit of the dispersal area and the coastline consisted of scattered pumice lapilli, with clasts ranging between 2-3 cm in size.

Further away, on the beach beyond the harbour of Scari, the occurrence of a light shower of fine lapilli was confirmed also by eyewitnesses. Regardless of the size, macroscopic features of distal clasts are similar to those of pumice material found on the upper slope.
A first large explosion occurred from the central sector producing coarse incandescent material; two seconds later, the emission of abundant ash caused the envelopment of the coeval magma jets.

Then another large explosion occurred at the Southern Sector, ejecting coarse material and abundant ash.
The main direction of products was N and NNE - confirmed by M. Zaia

Between Bastimento (about 730 m) and the Helipad (865 m of elevation) products consisted of scattered flattened bombs and pumice. The highest concentration of clasts was observed close to the shelters at 790 m. There the juvenile clasts mainly consisted of ballistic spatters with a ground-density of clasts 5-10 m apart and a size ranging between 35 and 80 cm (mean 65 cm).

Spatters were typically sub-circular to elongated and flattened upon impact on the ground, with light to dark yellow colour and high vesicularity. They often appeared covered by decimetric-thick clumps of golden glass.

No lithic blocks were found around the crater area. Around the shelter area, individual spatter bombs were covered by light pumice suggesting that pumice was deposited after the spatter.

The Md value decreased from ca. 20 cm (shelters), to ca. 10 cm to ca. 4 cm towards the Helipad. Fresh pumiceous material was brown to yellow, often iridescent; when observed under stereomicroscope, it appears strongly non-homogeneous with portions mingled with dark glass.
yes-yes, tephra fallout mapped in Andronico et al. 2010

bombs and blocks mapped in Rosi et al. 2013
Published surveillance camera photograms (Pizzo)seismic signal of a small collapse in Sciara del Fuocosmall lava flow (intracrateric)INGV - daily seismic report;
INGV - weekly bulletin;
Andronico&Pistolesi 2009 - JVGR196;
LaFelice&Landi 2011 - BullVolc73
2009112411:20major explosionRosi et al. 2013;
Calvari et al. 2014; Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion)
-yes, published seismogram (< 1 min) followed by 10 mins of increased tremor

VLP = 7x daily average
-CSAsh cloud and lapilli fallout affected the E sector of the island. Pumice deposit was observed in Forgia Vecchia.A first explosion produced abundant bombs and lava fragments including "Pizzo" sopra la Fossa.

After 15 s, another stronger explosion ejected coarse products radially, affecting the whole summit area, Pizzo included, at least 300 m from the vent.
The dispersal and volume of products erupted during 24 November were higher compared to 8 November. The tephra deposits consisted of: i) golden pumice (the highest dispersed material), ii) pluri-decimetric scoriae to over-metric sized spatters (confined in the proximal area), and iii) lithic clasts that caused evident impact craters in a more limited summit area.

A limited overlapping of tephra from both the 8 and 24 November fallouts was also observed close to the Helipad. The pumiceous products were dispersed from the summit to the eastern coastline; the maximum concentration on the ground (dispersal axis) was observed in the area between the Helipad and Pizzo.

There the deposit was not continuous, but constituted by abundant coarse pumice (several decimetric-sized clasts per m2), sometimes characterized by expanded clasts (post-landing expansion) with an inner empty cavity bounded by light glass. In the summit area clast sizes were variable, ranging from 7–8 to 20 cm. On the NE slopes (at 650 m a.s.l.), the Md was around 11 cm.
yesyes, several fires below Rina Grande.yes, tephra fallout, lithic blocks and spatter dispersion mapped in Andronico et al. 2010Published surveillance camera photograms (Pizzo and 400 m asl)-maybe lava flow (intracrateric)INGV - daily seismic report;
INGV - weekly bulletin;
Andronico&Pistolesi 2009 - JVGR196;
LaFelice&Landi 2011 - BullVolc73
2010-2014
YearMonthDayGMTType of eventPrevious catalogs
(characterization)
People affectedSeismicitySound/Air shockVentsAsh plume/falloutBallistic projectilesField surveyPumicesFiresMappedPhoto/videoHot avalancheLava flowMain References
201011014:48major explosionRosi et al. 2013; Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion)
-yes, 4 mins-Nash column towards NE, rising 500 m highbombs affect the crater terrace and "Pizzo", with an intense ballistic fallout of 12 s---yes, map by Rosi et al. 2013Published surveillance camera photograms (Pizzo and 400 m asl)-ongoingINGV - daily seismic report;
INGV - weekly bulletin;
BGVN - Calvari et al.;
Rosi et al. 2013 - GSLM37
201011409:18seismic sequenceCalvari&Nunnari, 2023
(major explosion)
-yes, but weaker than 10/01/2010-CSsmall ash column towards Eexplosion of 40s. products fell in the crater terrace and did not reach "Pizzo"----Published surveillance camera photograms (400 m asl)--INGV - weekly bulletin
201012120:45major explosionRosi et al. 2013;
Calvari et al. 2014; Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion)
-yes

VLP = 5x daily average
maybe heard in the villageCSsmall ash column towards Scoarse products (lapilli and bombs) fell in the S sector of crater terrace, and beyond.yes, two detailed field surveys 6 and 18 months after the January 2010 eruption. In total, 780 bombs were mapped. No other bombs were apparent within the crater area.-yesyes, map by Gurioli et al. 2013

bomb field to the S of crater terrace

this may include cumulative products of events in 2010/11.
Published surveillance camera photograms (Pizzo)--INGV - daily seismic report;
INGV - weekly bulletin;
Gurioli et al. 2013 - Geology41;
201031207:47seismic sequenceCalvari&Nunnari, 2023
(major explosion)
-yes, 10 mins

VLP = 4x daily average

dilatometer anomaly "similar" to major explosions
-N+CS-two explosions, 30 sec, wide ballistic fallout around crater terrace but probably did not affect "Pizzo".----Published surveillance camera photograms (400 m asl)

surveillance camera on Pizzo is not working
--INGV - daily seismic report;
INGV - weekly bulletin
201062506:02uncertain major explosionCalvari et al. 2014; Calvari&Nunnari, 2023
(major explosion)
-yes, 7 mins

VLP = 7x daily average
-CS---------INGV - daily seismic report;
INGV - weekly bulletin
201063016:33major explosionRosi et al. 2013;
Calvari et al. 2014; Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion)
-yes, 3 mins
3 events of increasing amplitude

VLP = 12x daily average

published seismogram
-N-poor weather conditions-yes (Calvari et al. 2014)yes, fallout from incandescent blocks triggered vegetation fires on the upper slopes----INGV - daily seismic report;
BGVN - Behncke&Coltelli;
Calvari et al. 2014 - BullVolc76;
Personal Communication - Falsaperla
201071119:46seismic sequenceCalvari&Nunnari, 2023
(major explosion)
-slightly greater amplitude than average

published seismogram, a seismic sequence is present
---two pulses-------INGV - daily seismic report;
Calvari&Nunnari, 2023 - MDPI15;
Personal Communication - Spampinato
2010121909:55uncertain major explosionCalvari et al. 2014; Calvari&Nunnari, 2023
(major explosion)
-yes

VLP = 5x daily average

published seismogram
----------small lava flow
started 7 days before the event

from 12/12/2010 to 19/12/2010
INGV - daily seismic report;
BGVN - Behncke&Coltelli;
Calvari et al. 2014 - BullVolc76;
Personal Communication - Falsaperla
201162005:19uncertain major explosionCalvari et al. 2014; Calvari&Nunnari, 2023
(major explosion)
-yes, sequence of explosion quakes with long tremor increase

published seismogram
-CS-explosion with (2 pulses) from CC-------Calvari et al. 2014 - BullVolc76;
Personal Communication - Falsaperla
20117502:43major explosionRosi et al. 2013;
Calvari et al. 2014; Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion)
-yes, 11 weak explosion quakes followed by a major event associated with a VLP of "medium-high" amplitude

published seismogram
-CSstrong wind towards Eexplosion with (3 pulses) from CC

high pyroclastic jet formed in the S part of Stromboli's crater terrace producing tephra that fell back onto "Pizzo"

great amount of hot products ejected towards "Pizzo" and the surveillance camera
field survey of D. Andronico and M. Zaia two days after the event. products fell on a narrow stripe N to Rina Grande and reaching the coast N to Forgia Vecchia.

Products found above 750 m asl. Pumiceous lapilli were observed floating in the sea and on the beach.

The zone around "Pizzo" was the most affected by ballistics. But products are irregularly distributed. Between crater terrace and "Pizzo" were not found pluridecimetric clasts.

There were four types of products. Mixed juvenile producs - max. from 8 to 12 cm, average 4-6 cm, 5-10 clasts / m2. Dark scoriaceous clasts - relatively scarse lapilli of 3-4 cm average size plus a few bombs of 15-20 cm. Yellow pumiceous clasts - < 6 cm, and lithics - mostly reddish, max. 10 cm, average 1-3 cm, few clasts / m2.
yes (Calvari et al. 2014)yes, fires at about 400 m asltephra fallout mapped by AndronicoPublished surveillance camera photograms (Pizzo and 400 m asl)

photos of burnt vegetation from Rina Grande and of clasts on "Pizzo"
--INGV - daily seismic report;
INGV report - Andronico;
BGVN - weekly report;
Personal Communication - Falsaperla
201171015:20uncertain major explosionRosi et al. 2013;
Calvari et al. 2014; Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion)
-two "medium-low" explosion quakes

then, "major event" with VLP of "medium-high" amplitude

tremor increase

published seismogram
-N+CSash emissionexplosion from SWC and CC areas

lava fragments ejected by the NE crater
-------INGV - daily seismic report;
Calvari et al. 2014 - BullVolc76;
Personal Communication - Falsaperla
20118507:14seismic sequenceRosi et al. 2013;
Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion)
-anomalous seismic event for duration and waveform

published seismogram, a seismic sequence is present

"low" amplitude of both explosion quake and VLP
-CS-coarse producs from vent S1 reached 200 m height and fell towards N

then, lava fountain 150 m high (20 s). All products of the fountain fell in the N sector of crater terrace
----Published surveillance camera photograms (Pizzo)-lava flow started 4 days before the event

from 1/8/2011 to 7/9/2011
INGV - daily seismic report;
INGV - weekly bulletin;
Personal Communication - Spampinato
201181519:33seismic sequenceCalvari et al. 2014; Calvari&Nunnari, 2023
(major explosion)
-event of "medium-high" amplitude in the explosion quake and "medium" VLP component

slightly greater than daily average

published seismogram, a seismic sequence is present
-N+CS-explosion with 2 pulses from NEC and 1 from SWC

explosion did not reach high elevation from the craters (20 s)
-----small collapse in Sciara del FuocoongoingINGV - daily seismic report;
INGV - weekly bulletin;
Personal Communication - Falsaperla
20119503:51uncertain major explosionCalvari et al. 2014; Calvari&Nunnari, 2023
(major explosion)
-event of "medium" amplitude in the explosion quake and "high" VLP component

followed by increased tremor for 10 mins

published seismogram
-N+CS-explosion from CC and NE crater zones, low lava fountaining from CC------ongoingINGV - daily seismic report;
Calvari et al. 2014 - BullVolc76;
Personal Communication - Falsaperla
201221522:08major explosionCalvari et al. 2014; Calvari&Nunnari, 2023
(major explosion)
-5 explosion-quakes of "medium-high" amplitude
VLP are "medium-low"

then, a few hours later, 6 explosion-quakes of "medium-high" amplitude, again VLP are "medium-low"
-Nash cloud towards NWW causing abundant fallout on Sciaraexplosive sequences from NEC with at least 5 pulses followed by a phase of intense fountaining, fallout of bombs on the Sciara and PizzoVolcanology guides performed a field survey two days later and found small bombs and lapilli on Pizzo and surrounding areas, up to "Valle della Luna", to the S.---Published surveillance camera photograms (400 m asl)

surveillance camera on Pizzo is not working
hot avalanche in Sciara del Fuoco-INGV - daily seismic report;
INGV - weekly bulletin
201221604:06seismic sequenceCalvari et al. 2014; Calvari&Nunnari, 2023
(major explosion)
-6 explosion-quakes of "medium-high" amplitude

VLP are "medium-low" but "medium high" for one of the events
-N-explosions interrupting a prolonged lava fountain-------INGV - daily seismic report;
INGV - weekly bulletin
20123606:43major explosionCalvari et al. 2014; Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion)
-yes, 3 explosive events

VLP = 10x daily average

tremor increased for 30 mins after the event
-N-explosions from NEC with fallout of bombs to NNE, probably up to Bastimento, and at Pizzo

lava fragments and bombs initially fell on the upper N sector of Sciara del Fuoco, probably up to low elevation for a cloud of fine products, i.e. 400 m asl

a second explosion ejected less bombs, but widely dispersed in the N and NE sectors, possibly affecting Bastimento, shelters, Pizzo.
Field survey a few hours after the event - not observed products on the trail between shelters and Pizzo. this does not exclude that any bomb affected the area.---Published surveillance camera photograms (400 m asl)

surveillance camera on Pizzo is not working
--INGV - daily seismic report;
INGV - weekly bulletin
201272618:31seismic sequenceCalvari et al. 2014; Calvari&Nunnari, 2023
(major explosion)
-small and short seismic sequence---explosion from the NEC-----small collapse in Sciara del Fuoco-Calvari et al. 2014 - BullVolc76;
Personal Communication - Falsaperla
2012112213:17
+20:56
uncertain major explosionCalvari et al. 2014; Calvari&Nunnari, 2023
(major explosion)
-yes

VLP = 7x daily average

tremor increased to "medium-high" after the event for 10 mins
-N+CS-first sequence - explosions from NE and CC crater areas with a few bombs towards "Pizzo"

bombs of the first explosion affected a wide area in the N and upper sector of Sciara del Fuoco and some fell close to Pizzo, but did not reach the camera.

products of the second explosion did not affect Pizzo area or its surroundings
----Published surveillance camera photograms (Pizzo)--INGV - daily seismic report;
INGV - weekly bulletin
201312423:48seismic sequenceBevilacqua et al. 2020; Calvari&Nunnari, 2023-seismic event of "medium-high" amplitude,
2 mins

VLP = 2x daily average
-CSash column was > 250 m high

towards SW
most intense initial explosion (30 s), ejected products 200 m high

bombs mostly fell in the S sector of crater terrace without affecting "Pizzo"
----Published surveillance camera photograms (Pizzo)--INGV - weekly bulletin
2013121417:07seismic sequenceCalvari&Nunnari, 2023
(major explosion)
-4 sub-events distributed in 90 s

explosion quake is "high", VLP is "medium-high"
-CSash cloud obscured visibility on the craterstwo explosions produced several bombs that abundantly fell in the crater terrace and on the upper slopes of Sciara del Fuoco----Published surveillance camera photograms (400 m asl)

Surveillance camera on Pizzo is blinded by clouds
--INGV - weekly bulletin
2013122515:49seismic sequenceBevilacqua et al. 2020
(major explosion);

Calvari&Nunnari, 2023 (uncertain major explosion)
-6 explosion quakes

VLP is "low", explosion quakes amplitude is "medium-low"

published seismogram, a seismic sequence is present
-CSsmall ash column with lapilli towards NEintense explosion (25 s)

radial dispersion, with lava fragments towards E and bombs towards S in the crater terrace and upper Sciara del Fuoco
----Published surveillance camera photograms (Pizzo)--INGV - weekly bulletin;
Personal Communication - Falsaperla
20141423:05seismic sequenceBevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion)
-sequence of close explosions not particularly strong

published seismogram, a seismic sequence is present
-CS-lava fountain. Wide dispersion of lava fragments and bombs in the S sector of crater terrace and upper SE of Sciara del Fuoco, without affecting "Pizzo" (34 s)

then second fountain less intense (60 s).

then, impulsive radially distributed explosion with reduced dispersion (10 s)
----Published surveillance camera photograms (Pizzo)--INGV - weekly bulletin;
Personal Communication - Falsaperla
2015-2019
YearMonthDayGMTType of eventPrevious catalogs
(characterization)
People affectedSeismicitySound/Air shockVentsAsh plume/falloutBallistic projectilesField surveyPumicesFiresMappedPhoto/videoHot avalancheLava flowMain References
201521511:08seismic sequenceBevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion)
-4 explosion quakes (2 mins)

VLP is "low", explosion quakes amplitude is "medium-low"

published seismogram, a seismic sequence is present
-CSsmall ash column towards Nexplosion (20 sec) - bombs and lapilli > 300 m high and fell in the crater terrace and in the upper sciara del fuoco ----Published surveillance camera photograms (400 m asl)

surveillance camera on Pizzo is not working
--INGV - weekly bulletin;
Personal Communication - Falsaperla
201571601:03seismic sequenceBevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion)
-yes, 1 min

VLP is "medium-high", explosion quakes amplitude is "medium-high"

followed by 10 min tremor increase
-N+CSsmall eruptive columnejection of bombs and lapilli from CS sector (15 s) up to 300 m high - products fell in all crater terrace and in S of upper Sciara del Fuoco

then explosion from N sector (10 s), radial dispersion of large bombs and lava fragments 200 m high that fell inthe N sector of crater terrace and Sciara del fuoco
products were not observed on "Pizzo", elipad, shelters, or the trails nearby---Published surveillance camera photograms (Pizzo)--INGV - weekly bulletin
2016-ordinary activity-------------INGV - daily seismic reports;
INGV - weekly bulletins
201772617:57major explosionGiudicepietro et al. 2019; Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion)
-yes, 4 events in the first minute - 90 s

tremor increased for 12 mins

published VLP seismogram
-CS ash cloud towards Eproducts radially dispersed, > 250 m high

then, second weaker explosion towards SE, and small lava fountain (50 m, 1 min)

decimetric ballistics fell below shelters at 750 m and in upper Sciara del Fuoco
field survey by INGV personnel four days after the event

On Pizzo, up to 850 m to the SW, max. dimension of clasts is 10 cm
---Published surveillance camera photograms (Pizzo and 400 m asl)--INGV - report of volcanic activity;
INGV - weekly bulletin;
Giudicepietro et al. 2019 - RemSens11
2017102314:04major explosionGiudicepietro et al. 2019; Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion)
-yes, > 5 mins

published VLP seismogram
-CSash plume produceddestroyed scoria cone and products are > 250 m high

products fell in Sciara del Fuoco and towards Pizzo, which was affected by ballistics

smaller explosions follow, ballistics towards SW
field survey on 4/11 - cumulative products of 23/10 and 1/11

light brown juvenile scoriaceous and light products dispersed towards S and SE, reaching Pizzo

also, wide stripe of lithic impacts on the N flank of the West of Valle della Luna.
yes--Published surveillance camera photograms (Pizzo and 400 m asl)--INGV - report of volcanic activity;
INGV - weekly bulletin;
Giudicepietro et al. 2019 - RemSens11
201711108:29major explosionGiudicepietro et al. 2019; Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion)
-yes, 3 mins

published VLP seismogram
-CSash emissionproducts radially ejected abundantly fell over crater terrace, > 300 m high

ballistics fell on "Pizzo"
field survey three days after the event - cumulative products of 23/10 and 1/11

large depression and pit in CS sector, hornito in N sector

abundant dark scoriaceous spatters. This is observed all over the crater terrace and on the flank of Pizzo towards the craters. Some spatter also fell on the NW ridge of Valle della Luna and on the N flank. There were observed the larest clasts, about 2 m.

also, lithic blocks of reddish lava sparse in a large area between all crater terrace and the S side of Pizzo
---Published surveillance camera photograms (400 m asl)

surveillance camera on Pizzo has tecnical issues

photos of the crater terrace
--INGV - report of volcanic activity;
INGV - weekly bulletin;
Giudicepietro et al. 2019 - RemSens11
201712112:42major explosionGiudicepietro et al. 2019; Bevilacqua et al. 2020; Calvari&Nunnari, 2023
(major explosion)
-large amplitude, 6 mins

published seismogram and VLP seismogram
-CS-destroyed scoria cone field survey two weeks after the event

several spatter bombs of dark scoriaceous material were observed on the final part of the trail from elipad to Pizzo

Size of largest spatter was between 20 and 40 cm (two were about 100 cm). This juvenile products are dispersed between SE and SW, above the products observed in November

A few reddish lithics were also observed. In the same sector there also was abundant scoria of 5-6 cm on average, plausibly associated to ordinary activity
---Published surveillance camera photograms (Pizzo)

bad weather

photos of the crater terrace
--INGV - report of volcanic activity;
INGV - weekly bulletin;
Giudicepietro et al. 2019 - RemSens11
20183712:48major explosionGiudicepietro et al. 2019; Bevilacqua et al. 2020; Petrone, 2022; Calvari&Nunnari, 2023
(major explosion)
-yes, 4 mins

published VLP seismogram - "medium-low" amplitude
-Nash cloud towards Elithic fragments radially distributed followed by fine products covering the N sector of crater terrace, and "beyond crater terrace"

products ejected > 350 m high

coarse products fell in upper Sciara del Fuoco
----Published surveillance camera photograms (Pizzo and 400 m asl)seismic signal of small collapse in Sciara del Fuoco-INGV - report of volcanic activity;
INGV - weekly bulletin;
Giudicepietro et al. 2019 - RemSens11
201831819:27uncertain major explosionGiudicepietro et al. 2019; Bevilacqua et al. 2020; Petrone, 2022; Calvari&Nunnari, 2023
(major explosion)
-yes, 5 mins

followed by tremor increase

published VLP seismogram - "high" amplitude
-N+CSash cloud towards NEradially distributed coarse products fell "beyond crater terrace" and in upper Sciara del Fuoco

ballistics were less than 250 m high
----Published surveillance camera photograms (Pizzo and 400 m asl)--INGV - report of volcanic activity;
INGV - weekly bulletin;
Giudicepietro et al. 2019 - RemSens11
201842409:05uncertain major explosionGiudicepietro et al. 2019; Bevilacqua et al. 2020; Petrone, 2022; Calvari&Nunnari, 2023
(major explosion)
-yes, 6 mins

followed by tremor increase

published VLP seismogram - "high" amplitude
-CSash cloud towards SEproducts radially fell "beyond crater terrace", in the E sector, and in upper Sciara del Fuoco

products > 250 m high

then, small lava fountain (a few tens of meters)
----Published surveillance camera photograms (Pizzo and 400 m asl)-INGV - report of volcanic activity;
INGV - weekly bulletin;
Giudicepietro et al. 2019 - RemSens11
201842622:53uncertain major explosionGiudicepietro et al. 2019; Bevilacqua et al. 2020; Petrone, 2022; Calvari&Nunnari, 2023
(major explosion)
-yes, 4 mins

published VLP seismogram - "medium-high" amplitude
-Nash cloudcoarse products fell "beyond crater terrace" and in upper Sciara del Fuoco - mostly towards W and NW

then, small lava fountain (a few tens of meters)
----Published surveillance camera photograms (Pizzo and 400 m asl)-INGV - report of volcanic activity;
INGV - weekly bulletin;
Giudicepietro et al. 2019 - RemSens11
201881815:08seismic sequenceBevilacqua et al. 2020; Petrone, 2022; Calvari&Nunnari, 2023
(major explosion)
-yes, high amplitude, 4 mins

VLP is "high" amplitude
-CSash cloudcoarse products fell in the crater terrace and upper Sciara del Fuoco----Published surveillance camera photograms (Pizzo and 400 m asl)--INGV - report of volcanic activity;
INGV - weekly bulletin
201962523:03major explosionGiudicepietro et al. 2019; Bevilacqua et al. 2020; Petrone, 2022; Calvari&Nunnari, 2023
(major explosion)
-published seismogram, "high" amplitude, 4 mins

increased tremor for 6 mins
-CSash cloud (18s) towards Sproducts fell in Sciara del Fuoco and in most of the crater terrace, prevalently S sector, with some blocks outside crater terracefield surveys one day and again three days after the event. products fell abundantly in Valle della Luna (towards Ginostra)

almost no ballistics along the ascent climb track. Southwards from the summit both lithic blocks and dark spatter bombs made of HP magma associated with impact craters up to some tens of cm deep.

Large bombs and blocks were scattered along the descent track with a southerly dispersal. The central crater rim was littered with large lithic blocks, and the crater floor was levelled out and covered by large coalescing spatter
clasts; central crater enlarged
-yes, fires below Rina Grande at ca. 500 m aslyes, map by Giordano&De AstisPublished surveillance camera photograms (Pizzo)

Photos of the products and impact marks.
--INGV - report of volcanic activity;
INGV - weekly bulletin;
Calvari et al. 2021 - RemSens13;
Giordano&De Astis 2021 - BullVolc83
20197314:46paroxysmBevilacqua et al. 2020; Calvari et al. 2021; Petrone, 2022; Calvari&Nunnari, 2023
(paroxysm)
one tourist dies on the trail above Ginostrapublished seismogram, two main explosionsShattered glass and blown off window frames in the village of StromboliN+CSThe umbrella cloud reached a maximum elevation estimated at around 8.4 km, spreading towards the SW.

Significant amounts of floating pumice from both the pyroclastic flows and direct fall into the water formed pumice rafts at the sea surface

At 100 m a.s.l., large (20-40 cm) pumiceous bombs, often broken upon impact, were found with an areal dispersion of 1-4 × 10−2 bomb m−2; a few of them impacted the upper houses.

A continuous and measurable lapilli fallout deposit was restricted to the surroundings of Ginostra village, at elevations < 250 m a.s.l., where the deposit was well preserved on the roofs of houses, on the harbour pier, roads and other flat surfaces

The maximum measured thicknesses of the pumice lapilli fall was 1.5 cm, i.e. more or less the diameter of a single clast.
first explosion from CS, then from all craters

Ballistics were launched down the volcano slope as low as 500 m a.s.l. along the N flank above Stromboli village, and below 250 m a.s.l., partly hitting Ginostra village

maximum clast size (average of the three maximum diameters) collected is 27 cm in diameter at the Punta dei Corvi locality and at similar elevations just to south.

Lava blocks shattered and coated with HP scoria, up to 37.3 cm in equivalent diameter, have been also found near Ginostra up to 1.4 km in a WSW direction from the crater area
products predominantly towards ESE. spatter and lava fragment become continous a few tens of meters from the elipad towards Pizzo, and in Valle della Luna

total thickness of the continuous spatter cover is rather uniform, from 30 to 40 cm, and only thickens where the steep slopes allowed for rheomorphic downslope flowage, up to 1 m; above it, a discontinuous layer of 0.5-3 m-sized spatter bombs of LP composition; their maximum dimension reaches the equivalent diameter of 171.7 cm in the Fossetta area, where some are coated with HP scoria and some are shattered and form large impact craters

A continuous, coarse-grained (10-50 cm) pumice bombs deposit, up to 0.7 m thick in the proximal sector, covered the upper W flank down to 500 m a.s.l.. N of Ginostra

Descending from Pizzo towards NE, the spatter bombs cover became discontinuous below 850 m a.s.l. down to ca. 0.25 spatter m−2 at a 450 m distance from the vents; at 350 m in the NE direction, at the helipad, the max. spatter diameter is 107.7 cm, rapidly decreasing to 18.7 cm along the final section of the trail to the summit.

Taking into account the ca 0.35 km2 area of continuous cover and a uniform thickness of 30 cm, the total volume is 10^5 m3

crater changes are significant - edge of crater terrace towards Sciara del Fuoco destroyed in the N and S sides, but not in the center; N1 and N2 merged in a large pit
yesyes, fires especially towards Punta dei Corviyes, map by Giordano&De AstisPublished surveillance camera photograms (Pizzo and 400 m asl)

camera on Pizzo was destroyed by the explosion

several photos of spatter bombs
two pyroclastic flows in Sciara del Fuoco

small rheomorphic flow towards Rina Grande and another to "Pianoro"; a few meters wide and up to 0.5 m-thick, flowing down the E flank to 600m a.s.l..
small intracrateric lava extrusions from all craters a few minutes before the event

lava flow after the event

from 3/7/2019 to 30/8/2019
INGV - reports of volcanic activity;
INGV - weekly bulletin;
Giordano&De Astis 2021 - BullVolc83;
Andronico et al. 2021 - NatComm12;
Calvari et al. 2021 - RemSens13;
Pichavant et al. 2022 - BullVolc84;
Bisson et al. 2023 - SciRep13;
Personal Communication - Landi
201982810:17paroxysmBevilacqua et al. 2020; Calvari et al. 2021; Petrone, 2022; Calvari&Nunnari, 2023
(paroxysm)
-published seismogram, three explosions-N+CSash column ca 6.4 km in height, spread towards the N-NE

A continuous and observable lapilli and ash fallout deposit was restricted to the northern slope of the volcano at elevations < 300 m a.s.l., covering Stromboli town, where the deposit was well preserved on roofs of houses, roads and other flat surfaces. At higher elevations, no continuous lapilli fall cover was identified.

pumice lapilli and ash fallout, which lasted 33 min
first and second explosions mainly from CS, third from N; the area above the Sciara was entirely saturated by the incandescent blast

Incandescent ballistics landed as low as 400 m a.s.l. towards Stromboli village

distribution of ballistics reconstructed from available photos and videos is less asymmetric compared to that of July 3

proximal region of scattered blocks and bombs outcrop in the proximal areas to a distance of ca 1600–1700 m from vent
Ballistic clasts at the summit that can be clearly identified as being associated with the August 28 paroxysm appear mainly to be blocks of accidental lava lithics; difficult to identify spatter clasts which could be associated with certainty with the August 28 explosion

at Pizzo the deposit was nearly continuous and up to ca. 0.2 m thick, and composed of 90–95% fresh juvenile LP-HP magma pyroclasts

The maximum lava block diameter (average of the three maximum diameters of the clast) measured is 86 cm near the summit, decreasing to 23 cm at the 850 m a.s.l. helipad. Along the northern flank of the volcano, at elevations lower than 500 m a.s.l., ballistic bombs were made of variably vesicular juvenile material

The tephra deposit was recognizable down to 300–500m a.s.l. to the NE. Sparse clasts ranging 3–6 cm in size were found down to 200 m a.s.l., and up to 10 cm in the NNE slopes. Sporadic HP spatter bombs up to 1m in size were found at 600 m a.s.l. towards NNE, and both HP bombs and non-juvenile blocks (0.1–0.5 m) reached 400 m a.s.l. NE.
yesyes, bush fires all around the island

Some bombs larger than 15 cm were still incandescent when they landed and were able to start bushfires as low as 300-400 m a.s.l.
yes, map by Giordano&De AstisPublished surveillance camera photograms (400 m asl and Punta dei Corvi)two pyroclastic flows in Sciara del FuocoongoingINGV - reports of volcanic activity;
Giordano&De Astis 2021 - BullVolc83;
Andronico et al. 2021 - NatComm12;
Calvari et al. 2021 - RemSens13;
Pichavant et al. 2022 - BullVolc84
201982920:43major explosionBevilacqua et al. 2020; Calvari et al. 2021; Petrone, 2022; Calvari&Nunnari, 2023
(major explosion)
-published seismogram--pyroclastic fall on GinostraTwo fountaining during lava flow output ----Published surveillance camera photograms (400 m asl)-ongoingINGV - report of volcanic activity;
Calvari et al. 2021 - RemSens13
2020-2023
YearMonthDayGMTType of eventPrevious catalogs
(characterization)
People affectedSeismicitySound/Air shockVentsAsh plume/falloutBallistic projectilesField surveyPumicesFiresMappedPhoto/videoHot avalancheLava flowMain References
202071903:00major explosionBevilacqua et al. 2020; UNIFI-LGS reports
(major explosion);

Calvari et al. 2021;
Calvari&Nunnari, 2023 (paroxysm)
-published seismogram

Seismic event
1.0 x10^-4 m in displacement

tilt 3.5 μrad al tiltmetro OHO
1500 Pa at 450 m distance CS-three explosions (35 s)

products were radially distributed and reached ca. 500 m asl
field survey - ballistics up to 1200 m from the vents towards E (on the trail), and over Pizzo and Valle della Luna towards SEyes-yes, map by Andronico&LandiPublished surveillance camera photograms (400 m, 190 m asl, Pizzo and Punta dei Corvi)

the explosion damaged the camera on Pizzo
--INGV - report of volcanic activity;
INGV - weekly bulletin;
UNIFI-LGS reports;
Personal communication - Landi;
Calvari et al. 2021 - RemSens13;
Landi et al. 2023 - ConMinPetr177;
Voloschina et al. 2023 - BullVolc85
202081314:50seismic sequenceCalvari et al. 2021; Calvari&Nunnari, 2023
(major explosion)
-published seismogram, 1 min

a sesmic sequence is present
--ash plume 150 m highordinary explosions----Published surveillance camera photograms (400 m, 190 m asl)--INGV - report of volcanic activity;
INGV - weekly bulletin;
Calvari et al. 2021 - RemSens13;
Personal communication - Falsaperla
2020111020:04major explosionUNIFI-LGS reports; Calvari et al. 2021; Calvari&Nunnari, 2023
(major explosion)
-published seismogram, 6 mins;
both explosion quake and VLP are "high" amplitude

Seismic event
0.38 x10^-4 m in displacement

tilt 1 μrad al tiltmetro OHO
220 Pa at 450 m distance CSash columnmostly in Sciara del Fuoco, but also to Pizzo

significative products emission beyond crater terrace
elicopter survey - great metric blocks in Sciara del Fuoco and S sector of crater terrace

Pizzo was concealed by clouds
---Published surveillance camera photograms (400 m, 190 m asl)-small lava flow,
intracrateric
INGV - report of volcanic activity;
INGV - weekly bulletin;
UNIFI-LGS reports;
Calvari et al. 2021 - RemSens13
2020111609:17major explosionUNIFI-LGS reports; Calvari et al. 2021; Calvari&Nunnari, 2023
(major explosion)
-published seismogram, 4 mins

Seismic event
0.25 x10^-4 m in displacement

tilt 0.7 μrad al tiltmetro OHO
567 Pa at 450 m distance

acoustic wave 2.5 greater than 10/11/2020
N+CSash column 1km highradial ejection of products 300 m high (1 min)

significative products emission beyond crater terrace

products over Pizzo
----Published surveillance camera photograms (400 m, 190 m asl and Punta dei Corvi)

Visible images from 750 m asl
pyroclastic flow in Sciara del Fuoco-INGV - report of volcanic activity;
INGV - weekly bulletin;
UNIFI-LGS reports;
Calvari et al. 2021 - RemSens13
2020112100:33seismic sequenceUNIFI-LGS reports; Calvari et al. 2021; Calvari&Nunnari, 2023
(major explosion)
-published seismogram

Seismic event
0.12 x10^-4 m in displacement

tilt 0.41 μrad al tiltmetro OHO
45 Pa at 450 m distanceN+CSsmall ash cloudthree explosions - relatively weak energy (25 s)

products 300 m high and fell in Sciara del Fuoco
----Published surveillance camera photograms (190 m asl)--INGV - weekly bulletin;
UNIFI-LGS reports;
Calvari et al. 2021 - RemSens13
202012605:12seismic sequenceCalvari et al. 2021; Calvari&Nunnari, 2023
(major explosion)
-published seismogram

Seismic event
0.35 x10^-4 m in displacement

tiltmeter OHO not working, but ROC was 4 times greater than 21/11/2020
150 Pa at 450 m distanceCSash cloud emissionradial ejection of products 300 m high and fell in Sciara del Fuoco (10 s)

then, lava fountain 200 m high (25 s)
----Published surveillance camera photograms (190 m asl)two small pyroclastic flowsrheomorphic flow in Sciara del FuocoINGV - weekly bulletin;
UNIFI-LGS reports;
Calvari et al. 2021 - RemSens13;
Calvari et al. 2022 - RemSens14
20213101:32major explosionUNIFI-LGS reports; Calvari&Nunnari, 2023
(major explosion)
-published seismogram

Seismic event
0.23 x10^-4 m in displacement

tilt 0.9 μrad al tiltmetro OHO
1017 Pa at 450 m distanceN+CS-three explosions, first most intense at crater N2

corse products ejected >350 m high fell in Sciara del Fuoco towards W and beyond Pizzo towards E

total duration 3m 30s
----Published surveillance camera photograms (190 m asl)--INGV - report of volcanic activity;
INGV - weekly bulletin;
UNIFI-LGS reports;
Calvari et al. 2022 - RemSens14
202171413:19major explosionUNIFI-LGS reports; Calvari&Nunnari, 2023
(major explosion)
-yes, event registered at all stations

Seismic event
0.33 x10^-4 m in displacement

tilt 0.6 μrad al tiltmetro OHO

preceded by tremor increase
250 Pa at 450 m distanceCS-products fell in Sciara del Fuoco and reached the area of Pizzo

abundant products "beyond crater terrace"

1 min duration
----Published surveillance camera photograms (Pizzo, 400 m, 190 m asl)--INGV - report of volcanic activity;
INGV - weekly bulletin;
UNIFI-LGS reports
202172814:47major explosionUNIFI-LGS reports; Calvari&Nunnari, 2023
(major explosion)
-published seismogram

VLP is "high" amplitude

Seismic event
0.41 x10^-4 m in displacement

tilt 0.7 μrad al tiltmetro OHO
244 Pa at 450 m distanceCS-products radially fell in Sciara del Fuoco, all crater terrace, and Pizzo, > 200 m high----Published surveillance camera photograms (Pizzo, 400 m, 190 m asl)--INGV - reports of volcanic activity;
INGV - weekly bulletin;
UNIFI-LGS reports
20218120:01major explosionUNIFI-LGS reports; Calvari&Nunnari, 2023
(major explosion)
-published seismogram

VLP is "high" amplitude

Seismic event
0.16 x10^-4 m in displacement

tilt 0.63 μrad al tiltmetro OHO

tremor increased 10 mins before the event
600 Pa at 450 m distanceCS-products 150 m high,fell beyond crater terrace, including in Sciara del Fuoco, and affected Pizzo----Published surveillance camera photograms (Pizzo, 190 m asl)

Thermal images from ROC
--INGV - reports of volcanic activity;
INGV - weekly bulletin;
UNIFI-LGS reports
202191119:09uncertain major explosionUNIFI-LGS reports; Calvari&Nunnari, 2023
(major explosion)
-published seismogram

Seismic event
0.22 x10^-4 m in displacement

tilt 0.7 μrad al tiltmetro OHO

tremor increased 10 mins before the event
260 Pa at 450 m distanceN-products "beyond crater terrace" and in Sciara del Fuoco

clouds on the crater terrace
----Published surveillance camera photograms (190 m asl)

clouds conceal the crater terrace
--INGV - reports of volcanic activity;
INGV - weekly bulletin;
UNIFI-LGS reports
202110614:17major explosionUNIFI-LGS reports; Calvari&Nunnari, 2023
(major explosion)
-published seismogram

Seismic event
0.41 x10^-4 m in displacement

tilt 0.9 μrad al tiltmetro OHO
1000 Pa at 450 m distanceNsmall ash plume (20 s)abundant coarse products radially fell beyond crater terrace, on Pizzo and in Sciara del Fuoco (10 s)field survey - decimetric spatter bomb about 500 m from the craters, below the shelters at Bastimento---Published surveillance camera photograms (400 m, 190 m asl, Pizzo and Punta dei Corvi)

photos of spatter bombs
-small flow in upper Sciara del FuocoINGV - reports of volcanic activity;
INGV - weekly bulletin;
UNIFI-LGS reports;
Landi - personal communication;
20225712:03seismic sequence--Published seismogram

LP at 2 Hz, amplitude 5/6 times greater than an ordinary explosion, 6 mins

ground deformation of 0.12 mrad in 15
mins

no infrasonic signal detected
---clouds on the crater terrace-------INGV - weekly bulletin
202251314:43major explosionUNIFI-LGS reports; Calvari&Nunnari, 2023
(major explosion)
-Published seismogram

Seismic event
0.66 x10^-4 m in displacement

tilt 1.88 μrad al tiltmetro OHO
4 waves of max. 500 Pa at 450 m distanceCSsignificant ash emission after first explosionssix main explosions, first is most energetic (8 s) - products 300 m high towards E and SE and affect Pizzo

total duration 4 mins

adundant products fell in Sciara del Fuoco and hot ballistics between 400 e 500 m asl towards E
field survey one day after the event. lowest elevation of products was 450 m asl, towards NE from the vents. Impact craters along trajectory implies that the products rolled down after a first landing

primary landing marks observed at 700-830 m asl, near the climbing trail ("Liscione"). They were all due to lithics.

Lithic bombs, decimetric to metric, close to the elipad at 850 m asl. climbing toward Pizza no impact marks or clasts, but a few were near the surveillance camera, undamaged.

On Pizzo there some juvenile scoriae, very light material, and stretched. Sporadic coverage, cm to dm sized. Towards "Fortini" on the S side (890 m asl), juvenile scoriae similar to those found on Pizzo. Observation of "Fossetta"- many clast or impact mark are evident.

CS craters were found deepened and enlarged by the event.
---Published surveillance camera photograms (190 m asl, Pizzo)

Photos of the products and impact marks.
--INGV - reports of volcanic activity;
INGV - weekly bulletin;
UNIFI-LGS reports;
Landi - personal communication;
202252514:11uncertain major explosionUNIFI-LGS reports; Calvari&Nunnari, 2023
(major explosion)
-Published seismogram

Seismic event
0.12 x10^-4 m in displacement

tilt 0.31 μrad al tiltmetro OHO
17 Pa at 450 m distanceCS-two explosions - first ejected products > 250 m high, that mostly fell in crater terrace, maybe reached Pizzo

second weaker, ejected coarse products 80 m high

Total duration 40s
----Published surveillance camera photograms (Pizzo)

Thermal images from ROC
--INGV - reports of volcanic activity;
INGV - weekly bulletin;
UNIFI-LGS reports
202272502:56major explosionUNIFI-LGS reports; Calvari&Nunnari, 2023
(major explosion)
-Published seismogram

Seismic event
0.46 x10^-4 m in displacement

tilt 1 μrad al tiltmetro OHO
150 Pa at 450 m distanceN+CS-abundant products in Sciara del Fuoco, not observed coarse products on Pizzo

most intense explosion is from crater N2 - products > 300 m high and fell in Sciara del Fuoco (2 mins)

several ballistics reach the coastline on Sciara del Fuoco

followed by 6 mins lava fountaining; weaker explosion from S1 closes the sequence (8 s)

total duration 8 mins

small cone destroyed in N sector
----Published surveillance camera photograms (400 m asl, Pizzo and Punta dei Corvi)small pyroclastic flow in Sciara del Fuocosmall flow in upper Sciara del Fuoco 2 days after the vent - 27/7/2022INGV - reports of volcanic activity;
INGV - weekly bulletin;
UNIFI-LGS reports
202292913:24uncertain major explosionUNIFI-LGS reports; Calvari&Nunnari, 2023
(major explosion)
-Published seismogram

Seismic event
0.27 x10^-4 m in displacement

tilt 0.25 μrad al tiltmetro OHO

tremor increased for 6-7 mins
150 Pa at 450 m distanceNash plume 300 m highabundant products in Sciara del Fuoco, not observed coarse products on Pizzo (8 s)

followed by weaker explosions, total duration 1 min
----Published surveillance camera photograms (190 m asl)-small flow in upper Sciara del Fuoco 4 days before the event - 25/9/2022

then, intermittent lava flows starting 5 days after the event

from 3/10/2022 to 16/10/2022
INGV - reports of volcanic activity;
INGV - weekly bulletin;
UNIFI-LGS reports
202313009:08seismic sequenceUNIFI-LGS reports; Calvari&Nunnari, 2023
(major explosion)
-yes, 3 mins

Seismic event
0.21 x10^-4 m in displacement

tilt 0.8 μrad al tiltmetro OHO

tremor increased to high values

published dilatometer
3.5 Pa at 450 m distanceCSash cloud towards Scoarse products ejected at over 300 m height

they fell towards E-SE over the crater terrace and upper Sciara del Fuoco

followed by other explosions 100 m high

total duration 2 mins
----Published surveillance camera photograms (190 m asl and Punta dei Corvi)

Thermal images from ROC
--INGV - reports of volcanic activity;
INGV - weekly bulletin;
UNIFI-LGS reports
202321617:17seismic sequenceUNIFI-LGS reports; Calvari&Nunnari, 2023
(major explosion)
-yes

Seismic event
0.25 x10^-4 m in displacement

tilt 1.0 μrad al tiltmetro OHO

published VLP signal

published dilatometer
30 Pa at 450 m distanceCS-radial lava fragments, lava fountaining and three medium intensity explosions, i.e. 150 m high

products reached over 300 m height and some fell into Sciara del Fuoco

total duration 1 min

then second phase of 2 mins, weaker
----Published surveillance camera photograms (190 m asl)--INGV - reports of volcanic activity;
INGV - weekly bulletin;
UNIFI-LGS reports
202332514:49seismic sequenceUNIFI-LGS reports; Calvari&Nunnari, 2023
(major explosion)
-yes

Seismic event
0.15 x10^-4 m in displacement

tilt 0.4 μrad al tiltmetro OHO

published dilatometer
negligible acoustic pressure at 450 m distanceCS-several explosions

prevalently fine products reched 300 m height

main dipersion over E-SE

total duration 3 mins
----Published surveillance camera photograms (Pizzo, COA)

Thermal images from ROC
-ongoing lava flow

from 3/24/2023 to 3/26/2023
INGV - reports of volcanic activity;
INGV - weekly bulletin;
UNIFI-LGS reports
20234711:03uncertain major explosionUNIFI-LGS reports; Calvari&Nunnari, 2023
(major explosion)
-yes, high amplitude

Seismic event
0.36 x10^-4 m in displacement

tilt 1.26 μrad al tiltmetro OHO

published dilatometer
75 Pa at 450 m distanceCS-First explosion over 400 m high, products fell mostly in the direction of Sciara del Fuoco, 18 s duration

second weaker explosion followed, 4s duration and product fell also outside the crater terrace, near Pizzo

third explosion produces ash, and fourth closes the sequence

total duration 2 mins and 20s
----Published surveillance camera photograms (Pizzo, 190 m asl)--INGV - reports of volcanic activity;
INGV - weekly bulletin;
UNIFI-LGS reports
20238819:06seismic sequenceUNIFI-LGS reports
(major explosion)
-yes

Seismic event
0.15 x10^-4 m in displacement

tilt 0.4 μrad al tiltmetro OHO

tremor increased to high values

published dilatometer
not reportedN-two main explosions

products widely fell outside crater terrace, over upper Sciara del Fuoco

not observed products towards Pizzo

total duration 1 m and 32s
Field survey 3 days after the event did not observe products of the explosion of 8/8 in the area of Pizzo; all samples are related to ordinary activity---Published surveillance camera photograms (Pizzo, 190 m asl)

Thermal images from ROC
-intense spattering produced two small lava flows in upper Sciara del Fuoco after the event and lasted for one dayINGV - reports of volcanic activity;
INGV - weekly bulletin;
UNIFI-LGS reports