GNGTS 2024 - Atti del 42° Convegno Nazionale

Session 1.1 GNGTS 2024 A “new” Aeolian event in the 20th century: the 19 th June 1916 earthquake in Filicudi Island. C.H. Caracciolo Isttuto Nazionale di Geofsica e Vulcanologia, Sezione di Bologna, Italy This "work in progress" paper is part of the revision of 20th-century Aeolian seismicity, contributng to the update of the Historical Seismological Database. In 1916, the second year of the war in Europe and the frst in Italy, public opinion was centred on batles, military movements, and news from various fronts, including the sea and the sky. The cost of civil navigaton became perilous due to bombardments from ships and atacks with torpedoes from submarines. Against this historical backdrop, Italy experienced intense geological actvity, notably the Romagna seismic sequence. Additonally, the Aeolian Islands, partcularly Stromboli, witnessed signifcant lava fows and eruptons, reaching a peak in early July. Two months later, on September 3rd, a moderate earthquake shook Salina island, causing minimal damage to only a few houses, as reported by Molin et al. (2008). An additonal event, absent from recent catalogues (CPTI15, CFTI5med), took place in the archipelago on June 19th. It was likely overshadowed by the news about the war and the eruptons of Stromboli. However, the PFG catalogue (Postpischl, 1985) records six earthquakes felt in the archipelago between June 12th and 20th, 1916, based on informaton from De Fiore (1917), Martnelli (1916) and Carrozzo et al. (1975). Recor d Data Hour Intensity Reference Epicentral Area 25557 1916 06 12 21:00 V - VI De Fiore (1917) Basso Tirreno 25558 1916 06 12 21:15 III Martinelli (1916); Carrozzo et al. (1975) Basso Tirreno 25560 1916 06 14 21:15 III De Fiore (1917) Basso Tirreno 25568 1916 06 17 09:00 V Carrozzo et. al. (1975) Basso Tirreno 25575 1916 06 19 21:00 V Martinelli (1916) Salina 25578 1916 06 20 02:00 III Martinelli (1916) Salina