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A seismological and engineering perspective on the 2016 Central Italy earthquakes

By Marco Fasan, Andrea Magrin, Claudio Amadio, Fabio Romanelli, Franco Vaccari and Giuliano Panza

Abstract

The strong earthquake (M 6.0-6.2) that hit the central Apennines on August 24, 2016, occurred in one of the most seismically active areas in Italy. Field surveys indicated severe damage in the epicentral area where, in addition to the loss of human life, widespread destruction of cultural heritage and of critical buildings occurred. Using the neo-deterministic seismic hazard assessment (NDSHA), we apply the maximum deterministic seismic input (MDSI) procedure at two of the most relevant sites in the epicentral area, comparing the results with the current Italian building code. After performing an expeditious engineering analysis, we interpret as a possible cause of the reported damages the high seismic vulnerability of the built environment, combined with the source and site effects characterising the seismic input. Therefore, it is important to design and retrofit with appropriate spectral acceleration levels compatible with the possible future scenarios, like the ones provided by MDSI

Topics: seismic hazards, response spectrum, neo-deterministic seismic hazard assessment, NDSHA, maximum deterministic seismic input, MDSI, seismic design, Italy, earthquakes, Apennines, building codes, seismic vulnerability, spectral acceleration levels, structural design, building retrofitting, structural damage, seismic response
Year: 2016
DOI identifier: 10.1504/IJEIE.2016.10004076
OAI identifier: oai:arts.units.it:11368/2897257

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