Author(s)

M. Mucciarelli, G. Monachesi & M.R. Gallipoli

Abstract

After the event that struck the border between Calabria and Basilicata regions in Italy, a series of in-situ measurements were undertaken. Applying the methodology already used in the aftermath of Marche-Umbria, 1997 and Slovenia, 1998 earthquakes, HVSR were measured using aftershocks, microtremors and man-made excitations. The measurements were performed both on free-field and inside damaged buildings. It was possible to see how the enhancement of damage can be attributed to a double resonance effect observed when a building fundamental mode approaches soil resonance frequency. With respect to previous cas

Keywords