Totaro C. (*), Orecchio B. (*), Presti D. (*), Gervasi A. (**,°), Guerra I. (**) & Neri G. (*)
(*) Earth Sciences Department, University of Messina, Messina.
(**) Department of Physics, University of Calabria, Rende (CS).
(°) INGV, Centro Nazionale Terremoti, Roma.