il terremoto del 30 Ottobre 1901 e la sismicità del versante occidentale del Garda

Abstract

On November 24, 2004 a strong earthquake (Ml 5.2), followed by a small seismic sequence, hit the western side of Lake Garda area, producing moderate but widespread damage in the main locality of the area (Salò) and more serious damage in some small villages of the Val Sabbia (Clibbio, Pompegnino). The macroseismic study of the 2004 earthquake has been the opportunity to reappraise the seismicity of the area. The most significant historical earthquake of the area is certainly that occurred on October 30, 1901, well known by the local historical memory. We carried out a revision of the 1901 earthquake, which has significantly improved the informative background; at the same time we reviewed and reassessed the available information on minor earthquakes affecting the area over the past two centuries. The deep review of the 1901 earthquake together with the new data-set allow a better definition of the characteristics of local seismicity and its seismic hazard.