Jacopo Taddeucci¹, Juan Juse Pena-Fernandez², Daniele Andronico³, Elisabetta Del Bello⁴, Jeffrey Bruce Johnson⁵, Ulrich Kueppers⁶, Tullio Ricci⁴, Piergiorgio Scarlato⁴, Joern Sesterhenn⁷ and Laura Spina⁸, (1)National Institute of Geophysics and Volcanology, Rome, Italy, (2)TU Berlin, Institut für Strömungsmechanik und Technische Akustik, Berlin, Germany, (3)Istituto Nazionale di Geofisica e Vulcanologia, Etna Observatory, Catania, Italy, (4)National Institute of Geophysics and Volcanology, Sezione di Roma 1, Rome, Italy, (5)Boise State University, Department of Geosciences, Boise, ID, United States, (6)Ludwig Maximilian University of Munich, Earth & Environmental Sciences, Munich, Germany, (7)Technische Universitat Berlin, Berlin, Germany, (8)Istituto Nazionale di Geofisica e Vulcanologia, Roma, Italy