Vincenzo De Novellis¹, Andrea Antonioli², Simone Atzori², Manuela Bonano³, Raffaele Castaldo¹, Francesco Casu¹, Claudio de Luca¹, Michele Manunta¹, Mariarosaria Manzo¹, Fernando Monterroso⁴, Giovanni Onorato¹, Nikos Svigkas⁵, Cristiano Tolomei², Emanuela Valerio¹, Ivana Zinno¹ and Riccardo Lanari¹, (1)CNR Institute for the Electromagnetic Sensing of the Environment, Naples, Italy, (2)Istituto Nazionale di Geofisica e Vulcanologia, Rome, Italy, (3)IMAA, CNR, Tito Scalo, Italy, (4)University of Naples "Parthenope", Napoli, Italy, (5)National Institute of Geophysics and Volcanology, Rome, Italy