Site Response Analyses for Post-Earthquake Reconstruction in the Area of L’Aquila: Influence of the Input Subsoil Model

Significant local amplifications of the ground motion and variable damage distribution are characteristic features, among other observed effects, produced by the 2009 L’Aquila (Italy) earthquake. Site response analyses may play an important role in post-earthquake reconstruction, aiming at protection of the territory and mitigation of the effects of future earthquakes. The paper describes the results of site response analyses in the urban area of L’Aquila, focusing in particular on the influence of assumptions made in the definition of the input subsoil model. This issue is discussed with the aid of an example for one representative site (Pettino – San Sisto area).