Seismic microzonation of level 1 of the historic center of Rome

Massimiliano Moscatelli (*), Alessandro Pagliaroli (*), Marco Mancini (*), Francesco Stigliano (*), Mattia Marini (*), Maurizio Simionato (*), Gian Paolo Cavinato(*) & Antonio Colombi (**)
(*) Istituto di Geologia Ambientale e Geoingegneria, CNR, Area della Ricerca di Roma 1 - Montelibretti, Via Salaria km 29,300, 00015 Monterotondo Stazione (RM), Italy. E-mail: massimiliano.moscatelli@igag.cnr.it (**) Direzione Regionale Infrastrutture, Ambiente e Politiche Abitative, Pianificazione di Protezione Civile, Regione Lazio, Via Rosa Raimondi Garibaldi 7, 00145 Rome, Italy.

In this note the seismic microzonation of level 1 of the historic center of Rome is presented. After a description of the subsoil model, which is primarily defined in terms of lithotypes and associated shear wave velocities, the results of the ambient noise measurements are presented and the fundamental frequencies are identified in the whole studied area. Finally, the homogeneous microzones in seismic perspective are described, in relation to seismic amplification and slope instability, and compared with damages from seismic events.

subsoil model, site effects, seismic microzonation, historic center of Rome