Giuseppe T. Aronica (*), Claudio Puglisi (**), Susanna Naso (*), Luca Falconi (**) & Gabriele Leoni (°)
(*) Dipartimento di Ingegneria Civile, Università di Messina, Italy.
(**) ENEA, Italian National Agency for new technologies, energy and sustainable economic development, Italy.
(°) Consultant geologist, Italy.