Seismic microzonation of level 1 of the historic center of Rome

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.