Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/7621
Authors: Sbarra, P.* 
De Rubeis, V.* 
Di Luzio, E.* 
Mancini, M.* 
Moscatelli, M.* 
Stigliano, F.* 
Tosi, P.* 
Vallone, R* 
Title: Macroseismic effects highlight site response in Rome and its geological signature
Issue Date: 2012
Series/Report no.: 2/62 (2012)
DOI: 10.1007/s11069-012-0085-9
URI: http://hdl.handle.net/2122/7621
Keywords: Earthquakes
Intensity residuals
Urban geosciences
Macroseismic effects
Amplification areas
Subject Classification04. Solid Earth::04.04. Geology::04.04.09. Structural geology 
04. Solid Earth::04.06. Seismology::04.06.04. Ground motion 
04. Solid Earth::04.06. Seismology::04.06.11. Seismic risk 
Abstract: A detailed analysis of the earthquake effects on the urban area of Rome has been conducted for the L’Aquila sequence, which occurred in April 2009, by using an on-line macroseismic questionnaire. Intensity residuals calculated using the mainshock and four aftershocks are analyzed in the light of a very accurate and original geological reconstruction of the subsoil of Rome based on a large amount of wells. The aim of this work is to highlight ground motion amplification areas and to find a correlation with the geological settings at a sub-regional scale, putting in evidence the extreme complexity of the phenomenon and the difficulty of making a simplified model. Correlations between amplification areas and both near-surface and deep geology were found. Moreover, the detailed scale of investigation has permitted us to find a correlation between seismic amplification in recent alluvial settings and subsiding zones, and between heard seismic sound and Tiber alluvial sediments.
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