Geophysical Subsoil Characterization and Modeling Using Cluster Analysis for Seismic Microzonation Purposes

In the municipality of Enna, 80 HVSR measurements were performed, and some these combined with MASW seismic measurements, which made it possible to constrain data inversion obtain significant shear wave velocity models. A reconstruction depth bedrock was performed for whole territory, showing different depths higher lower areas, as evidenced also by Vseq parameter map. The frequency peaks identified in H/V curve analyzed through a cluster analysis algorithm evaluate similarities that allow be divided according their stratigraphic origin. non-hierarchical modified such way avoid any priori choice could influence partition has been used. divide into five groupings, each then associated discontinuity, geological contacts expected subsoil. Finally, reconstruct geometries contact surfaces 3D model subsoil, agrees well surface geology area.