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Volcanic hazard assessement at Campi Flegrei caldera with uncertainty quantification

| 28 Gennaio 2016 | ore 11 | Andrea Bevilacqua – INGV e SNS PI | Sala seminari – INGV Sezione di Pisa

Abstract

Campi Flegrei is the most active caldera in Europe with more than 70 eruptions within the last 15 ka: the great majority of them have been explosive, variable in magnitude, intensity and vent location. Very high risks are associated with the occurrence of pyroclastic density currents (PDCs). Mapping of long-term PDC hazard in the area is a great challenge due to the unknown eruption time, scale and vent location of the next event as well as the complex dynamics of the flow over the caldera topography. This is additionally complicated by the remarkable epistemic uncertainty on the eruptive record, affecting the time of past events, the location of vents as well as the PDCs areal extent estimates.

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Non equilibrium structures in lava flows

| 18 Gennaio 2016 | ore 11 | Simone Tarquini – INGV PI | Sala seminari – INGV Sezione di Pisa

Abstract

Lava flows are open systems which, under favorable conditions, can attain a non-equilibrium stationary state. Although this evidence is not new, the open system nature has never been fully considered in a model which accounts for both the observed dynamics and the thermal regimes of lava flow.

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