Giuditta Marinaro¹, Bruce M Howe², Stephen Lentz³, Davide Embriaco¹, Paolo Favali⁴ and Laura Beranzoli¹, (1)Istituto Nazionale di Geofisica e Vulcanologia, Roma, Italy, (2)University of Hawaii, Honolulu, HI, United States, (3)Ocean Specialists, Inc., McLean, VA, United States, (4)EMSO ERIC - European Multidisciplinary Seafloor and Water-Column Observatory, Rome, Italy