Towards a multi-hazard assessment at mt. Etna volcano (italy): investigating the statistical relationship between flank eruptions and major earthquakes in the historical catalogs

Abstract

The problem of evaluating the statistical dependence among different series of events is often encountered in geophysics. On active volcanoes, the typical question is to relate different phenomena having significant impact in terms of multi-hazard implications. At Mt. Etna volcano, flank eruptions are often related to the occurrence of damaging earthquakes; the last case-history is the 2018 flank eruption, accompanied by a seismic swarm producing a destructive earthquake (Mw 4.9). The statistical analysis of the seismic and eruptive records on a significant time-span may contribute to defining potentially hazardous conditions and enhancing civil protection preparedness.