On the complexity of earthquake sequences: a historical seismology perspective based on the L'Aquila seismicity (Abruzzo, Central Italy), 1315-1915

摘要: Most damaging earthquakes come as complex sequences characterized by strong aftershocks, sometimes foreshocks and often multiple mainshocks. Complex earthquake have enormous seismic hazard, engineering societal implications their impact on buildings infrastructures may be much more severe at the end of sequence than just after mainshock. In this paper we examine whether historical sources can help characterizing rare preinstrumental times in full, including fore-, mainand aftershocks. Thanks to its huge documentary heritage Italy relies one richest parametric catalogues worldwide. Unfortunately most current methods for assessing hazard require that declustered removing all shocks bear some dependency with those identified We maintain requirement has forced seismologists focus only mainshocks rather also foreand To shed light onto major past, individual mainshocks, investigated 10 (Mw 4.7-7.0) hit L’Aquila area central Abruzzo from XIV XX century. find results research are crucial modern seismology, yet rendering causes information lost, or not easily trasnferred potential users. For reason advocate a change strategies creation flexible standard storing using made available seismology.