1. Department of Sciences University of Roma Tre Rome Italy
2. King Abdullah University of Science and Technology (KAUST) Thuwal Saudi Arabia
3. Department of Physics and Geology University of Perugia Perugia Italy
4. Laboratoire des Sciences du Climat et de l'Environnement, CEA, CNRS, UVSQ Gif‐sur‐Yvette Cedex France
5. Istituto Nazionale di Geofisica e Vulcanologia (INGV) Rome Italy