1. Istituto Nazionale di Geofisica e Vulcanologia Rome Italy
2. Department of Earth SciencesUniversity of Durham Durham UK
3. LEMR, ENAC, École polytechnique fédérale de Lausanne (EPFL) Lausanne Switzerland
4. School of Earth, Atmospheric and Environmental SciencesUniversity of Manchester Manchester UK
5. Dipartimento di GeoscienzeUniversità degli Studi di Padova Padua Italy