Georgina E King¹, Shigeru Sueoka², Floriane Ahadi³, Cécile Gautheron³, Frédéric Herman⁴, *Sumiko Tsukamoto⁵, Takahiro Tagami⁶ (1.Institute of Geology, University of Bern, Switzerland, 2.Japan Atomic Energy Agency, Japan, 3.UMR Interactions et Dynamique des Environnements de Surface, Université de Paris, Sud, France, 4.Institute of Earth Surface Dynamics, Université de Lausanne, Switzerland, 5.Leibniz Institute for Applied Geophysics, Germany, 6.Kyoto University, Japan)