Alfonso Corniello (*), Daniela Ducci (*) & Gennaro Maria Monti (**)
(*) Department of Hydraulic, Geotechnical and Environmental Engineering, University of Naples "Federico II". E-mail: corniell@unina.it; daniela@unina.it
(**) Department of Geological Survey of ItalyI, ISPRA, Roma. E-mail: gennaromaria.monti@isprambiente.it