*Takumi Obata¹, Tetsuo Matsuno², Takuto Minami¹, Yoshiya Usui³, Hiroshi Ichihara⁴, Yoshiyuki Tatsumi², Hiroko Sugioka^1,2, Hironori Otsuka², Nobukazu Seama^1,2 (1.Department of Planetology, Graduate School of Science, Kobe University, 2.Kobe Ocean-Bottom Exploration Center, Kobe University, 3.Earthquake Research Institute, the University of Tokyo, 4.Earthquake and Volcano Research Center, Graduate School of Environmental Studies, Nagoya University)

*Kyoko Okino¹, Shiki Machida², Tomoaki Morishita³, Katsuyoshi Michibayashi⁴, Akira Ishikawa⁵, Naoto Hirano⁶, Yibing Li⁷, Masakazu Fujii⁸, Nobukazu Seama⁹, Yuki Minegishi¹, Takuya Yahagi¹, Michinari Sunamura¹⁰, Akiko Makabe¹¹, Scientific Team KH-24-4 (1.Atmosphere and Ocean Research Institute, The University of Tokyo, 2.Chiba Institute of Technology , 3.Kanazwa University , 4.Nagoya University, 5.Institute of Science Tokyo, 6.Tohoku University , 7.Chinese Acaemy of Geological Science, 8.National Institute of Polar Research, 9.Kobe University , 10.The University of Tokyo, 11.Japan Agency for Marine-Earth Science and Technology )

*Seitaro Ono^1,2, Kyoko Okino¹, Nobukazu Seama³, Toshitsugu Yamazaki¹ (1.Atmosphere and Ocean Research Institute, The University of Tokyo, 2.The National Institute of Advanced Industrial Science and Technology, 3.Department of Planetology, Graduate School of Science, Kobe University)

*Masakazu Fujii^1,2, Kyoko Okino³, Chiori Tamura³, Seitaro Ono³, Tomohiro Ito⁴, Nobukazu Seama⁵, Ryosuke Suzuki⁵ (1.National Institute of Polar Research, 2.SOKENDAI (The Graduate University for Advanced Studies), 3.Atmosphere and Ocean Research Institute, The University of Tokyo, 4.Department of Earth and Planetary Systems Science, Hiroshima University, 5.Kobe University)

*Ryosuke Suzuki¹, Nobukazu Seama¹, Chiori Tamura², Masanari Ashida², Seitaro Ono², Kyoko Okino², Masakazu Fujii^3,4 (1.Kobe University, 2.Atmosphere and Ocean Research Institute, The University of Tokyo, 3.National Institute of Polar Research Tachikawa Japan, 4.SOKENDAI (The Graduate University for Advanced Studies) Hayama Japan)

*Nobukazu Seama^1,2, Tomoeki Nakakuki³, Kazuya Kitada⁴, Gou Fujie⁴ (1.Department of Planetology, Graduate School of Science, Kobe University, 2.Kobe Ocean-Bottom Exploration Center (KOBEC), 3.Earth and Planetary System Science Program, Graduate School of Advanced Science and Engnineering, Hiroshima University, 4.Japan Agency for Marine-Earth Science and Technology (JAMSTEC))

*Seiya Hirosaki¹, Takuto Minami¹, Nobukazu Seama¹ (1.Department of Planetology, Graduate School of Science, Kobe University)