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Example of a hierarchy of validation tiers for pyroclastic currents. (A) Complete system (public domain photo courtesy of B. Voight, Penn State University). (B) Subsystem (public domain photo courtesy of Jonathan Stone). (C) Benchmark case (photo courtesy of G. Lube, Massey University, NZ). (D) Unit problem (picture modified after Hallworth…

Example of the identification of two segments (segment 1 in light orange and segment 2 in dark orange) for the MRL50 of the EU4b unit. Starting from these two segments (and from the others that compose the whole outline), different uncertainty bounds are traced according to the amount and quality…

Conceptual models and multiscale spectra of PDCs Lube G., E.C. P. Breard, T. Esposti-Ongaro, J. Dufek and B. Brand (2020).Nature Reviews – Earth & Environment, 1, 348–365, https://doi.org/10.1038/s43017-020-0064-8. Abstract Pyroclastic density currents (PDCs) are dangerous multiphase flows originating from volcanic eruptions. PDCs cause more than a…

L’Istituto Nazionale di Ottica (INO) del Consiglio Nazionale delle Ricerche, capofila del progetto ORMA “Alta fORMAzione e ricerca-azione presso enti di ricerca toscani”, ha indetto una selezione per il conferimento di 11 borse di studio di Alta Formazione da fruirsi presso: Consiglio Nazionale delle Ricerche (Area di Firenze e Area…

Trellis plot of the median values of the GMMs pre-selected for ASCRs Lanzano G., L. Luzi, V. D’Amico, F. Pacor, C. Meletti, W. Marzocchi, R. Rotondi, E. Varini (2020).Bulletin of Earthquake Engineering, doi: 10.1007/s10518-020-00850-y. Abstract The aim of this paper is to identify the ground motion models (GMMs),…

Figure 2. Volcán de Colima—comparison between max flow height maps of simulated flow, assuming MC (a,d), PF (b,e), and VS (c,f) models. Extreme cases—(a–c) max. volume–min. resistance and (d–f) min. volume–max. resistance. Patra A.K., A. Bevilacqua, A. Akhavan-Safaei, E.B. Pitman, M.I. Bursik, and D. Hyman (2020).Frontiers in Earth Science, doi:…