Pondrelli S. (*), Margheriti L. (**), Salimbeni S. (*), Piana Agostinetti N. (**), Piccinini D. (**), Lucente F.P. (**), Levin V. (***), Park J. (°) & Plomerova J. (°°)
(*) INGV, Bologna, Italy.
(**) INGV, Rome, Italy.
(***) Rutgers University, Piscataway, NJ, USA.
(°) Yale University, CT, USA.
(°°) Czech Academy of Sciences, Prague, Czech Republic.