L’aquila (central Italy) earthquakes: the predecessors of the april 6, 2009 event

On April 6th 2009 a Mw=6.3, Imax=9-10 earthquake struck the Abruzzi region of Central Italy (http://portale.ingv.it/highlights/view?set_language=en). We find similarities in some peculiar characteristics of the 2009 sequence and of some historical events occurred in the area, in particular in 1461 and 1762. We observe strong analogies in the distribution of the intensities and in the areas of the strongest effects produced by these shocks, as well as in the temporal evolution.Published1008–10134T. Sismicità dell'ItaliaJCR Journalreserve