50 LE RISQUE VOLCANIQUE DIFFERENT APPROACHES TO ESTIMATE THE LOCAL SEISMIC HAZARD: AN APPLICATION TO THE ZELANTEA ACADEMY MUSEUM IN ACIREALE (SICILY) Stefano Gresta (1) , Sebastiano Imposa (1) , Francesco Barone (1) , Domenico Bella (2) (1) Centro di Ricerche sulle cause di degrado per il recupero dei Beni Culturali e Monumentali, (C.Ri.Be.Cu.M.) - Università di Catania. (2) Centro Scientifico per l'Ambiente (C.S.A.) - Acireale Abstract Mt. Etna is an active volcano, the slopes of which are densely inhabited, the southeastern one markedly, where the town of Acireale is located. The proper- ly named volcanic hazard is mainly experienced by lava flow invasion and ash downfall. However, the hazard associated with the local and/or regional earth- quake activity cannot be neglected. Then, the Zelantea Academy Museum, located in the Acireale downtown, has been chosen as "test site" for different estimates of the seismic hazard on a building of interest for the cultural heritage. A seismic catalogue for the local earthquakes has been compiled, after the collection and revision of the still available catalogues and of coeval and recent- ly published sources. The final catalogue includes 85 local earthquakes and the distribution of their intensity on 64 different localities identified within the Acireale municipality boundaries. A catalogue of the local seismogenic faults (able to generate earthquakes in historical times) has been compiled, too. The coupling of both catalogues allowed us to the following conclusions: i) the most important seismogenic faults affecting the Acireale municipality do not affect the downtown, while the related local earthquakes attenuate their energy (and intensity) in short (few km) distances; ii) the highest seismic intensity (degree X) at the site of Zelantea Academy Museum (in Acireale downtown) was done by the 1693 regional earthquake; iii) over the last 140 years, Acireale downtown has experienced an intensity value of VII only once, while six times the intensity was VI. In the whole, this implies a moderate seismic hazard. The estimate of the seismic hazard at the site has been approached also by the experimental method of the recording seismic noise. Twelve measurements have been performed outside and inside the Zelantea Academy Museum.