Luca Malagnini, Organization Not Listed, Washington, DC, United States, Giovanni Sebastiani, Istituto per le Applicazioni del Calcolo “Mauro Picone”, Consiglio Nazionale delle Ricerche, Rome, Italy, Rome, Italy, Douglas Scott Dreger, University of California Berkeley, Berkeley, CA, United States, Roland Burgmann, Univ California Berkeley, Seismological Laboratory, Berkeley, CA, United States, Irene Munafo, Istituto Nazionale d Geofisica e Vulcanologia, Roma, Italy and Lawrence J Hutchings, LBNL-Earth Sciences, Berkeley, CA, United States