1. Department of Geology & Geoenvironment, Division of Geophysics and Geothermics, National & Kapodistrian University of Athens, 15772 Athens, Greece
2. National Observatory of Athens, Institute of Geodynamics, Lofos Nymfon, Thission, 11810 Athens, Greece
3. Department of Engineering and Geology, University ‘G. d’Annunzio’ of Chieti-Pescara, 66100 Chieti, Italy
4. PACE Geoscience, 66100 Chieti, Italy