Sossio Del Prete (*), Giuseppe Di Crescenzo (**), Luca Di Iorio (*) & Antonio Santo (**)
(*) Geologists. E-mail: dpsossio@alice.it; drigpp@alice.it
(**) Department of Hydraulic, Geotechnical and Environmental Engineering, University of Naples "Federico II". E-mail: g.di.crescenzo@alice.it; santo@unina.it