A probabilistic seismic hazard analysis (PSHA) has been developed for selected sites located in Calabria (southern Italy) with the specific aim of accurately assessing the largest expected ground acceleration. The selected sites host hydroelectric dams that have to be seismically assessed, as requested by the Italian authority, and response spectra and accelerometric time histories are required as input parameters. The study has been developed for CESI S.p.A., that performs the dam seismic assessment under request of A2A S.p.A, owner of the plants. The seismic hazard analysis was designed to provide a broad spectrum of input ground motions suitable for the verification, through a mathematical model, of the structural behaviour of the dams.
