Cataloguing the EEEs induceded by the 1783 5th February Calabrian earthquake: implications for an improved seismic hazard

A series of strong seismic events occurred in Calabria (Southern Italy) in 1783, triggering a very long seismic sequence lasting about three years. The first main shock occurred on 5th February (Intensity 11 MCS; Mw about 7; Rovida et al., 2011), causing more than 30,000 casualties and drastically changes in the local landscape. This event was followed by other strong shocks in the night and during the following days. Particularly, on 6th February, a strong earthquake(Intensity 8.5 MCS; Mm 5.8; (Working Group CPTI, 1999) triggered in Scilla, along the cliff of the Monte Paci, a huge rock avalanche (5 Mm3 inland and 3 Mm3 in the off shore zone), generating a disastrous tsunamis On 7th February another atastrophic event rocked the Mesima Valley (Intensity 10.5 MCS; Mw about 6.7; followed by another strong event on 28 th March, in the Catanzaro area (Io = 11 MCS, Mw about 7;The epicentres and local macroseismic intensities of three major shocks are located in figure Environmental Effects (EEEs) caused by these seismic events have been fully documented by contemporary reports . All the effects described in different historical sources and recent papers have been carefully reviewed and catalogued in the EEE Catalogue.