*Takeshi Hanyu¹, Nobukazu Seama^2,3, Satoru Tanaka¹, Yoshiyuki Tatsumi^3,2, Shunsuke Abe², Morihisa Hamada¹, Tomoko Hanyu³, Hikaru Iwamaru³, Souko Kado², Katsuya Kaneko^2,3, Ryohei Kikuchi², Koji Kiyosugi³, Tetsuo Matsuno^3,2, Iona McIntosh¹, Takashi Miyazaki¹, Reina NAKAOKA³, Nobuyuki Okamoto³, Taiki Orii², Satoshi Shimizu³, Tsuyoshi Shintani⁴, Keiko Suzuki-Kamata^3,2, Maria Luisa Tejada¹, Kenta Ueki¹, Bogdan Stefanov Vaglarov¹ (1.Japan Agency for Marine-Earth Science and Technology, Research Institute for Marine Geodynamics, 2.Kobe University, Graduate School of Science, 3.Kobe University, Kobe Ocean Bottom Exploration Center, 4.Osaka City University, Graduate School of Science)