ABSTRACT
The coastal M. Paci rock-avalanche occurred on February 6 1783, near the village of Scilla. This landslide produced a tsunami wave responsible for more than 1500 losses in the neighbour Marina Grande beach. Between February 5 and March 28 1783, 5 earthquakes hit southern Calabria, related to the 1783 ‘‘Terremoto delle Calabrie’’ seismic sequence. The Scilla rock-avalanche is one of the main ground effects induced by the seismic sequence and represents one of the most damaging landslides historically reported in Italy. Geological and geomorphological investigation have been performed in order to analyse the 1783 Scilla huge landslide responsible for a tsunami wave which hit the Marina Grande beach. The subaerial landslide has been classified as a rock-avalanche since it involved highly jointed rock masses, producing an heterometric block-type deposit both in the subaerial and in the submarine area.
