*Rie Nakata¹, Kimihiro Mochizuki¹, Norimitsu Nakata^4,5, Masataka Kinoshita¹, Yuri Hashimoto³, Yohei Hamada², Yasuyuki Nakamura², Seiichi Miura², Ryuta Arai² (1.Earthquake Research Institute, University of Tokyo, 2.JAMSTEC, 3.Kochi University, 4.Lawrence Berkeley National Laboratory, 5.MIT)

Maho Adachi², *Yohei Hamada¹, Yoshitaka Hashimoto², Kazuya Shiraishi¹, Yanxue Ma³, Rie Nakata³, Masataka Kinoshita³ (1.Japan Agency for Marine-Earth Science and Technology, 2.Kochi University, 3.The University of Tokyo)

*Asuka Yamaguchi¹, Rina Fukuchi², Yohei Hamada², Hiroaki Koge⁴, Kiichiro Kawamura⁵, Akira Ijiri⁶, Hanaya Okuda³, Mari Hamahashi⁵, Konosuke TERUI¹, Takahiro Hosokawa⁷, Kanji Tatsumi⁶, Juichiro Ashi¹, Takafumi Kasaya³, Masataka Kinoshita¹, Koji Kameo⁸, Yoshimi Kubota⁹, Takeshi Tsuji¹, Kazuya Shiraishi³, Gaku Kimura³ (1.The University of Tokyo, 2.Naruto University of Education, 3.JAMSTEC, 4.GSJ, AIST, 5.Yamaguchi University, 6.Kobe University, 7.Kochi University, 8.Chiba University, 9.National Museum of Nature and Science)

*Makoto Otsubo¹, Masataka Kinoshita², Minoru Ikehara³, Ryuta Arai⁴, Ayanori Misawa¹, Hiroaki Koge¹, Katsura Kameo⁵, Chiori Tamura⁵, Ryoji Toda⁵, Stephen P. Obrochta⁶, Takanori Kagoshima⁷, Tomohiro Toki⁸, Daisuke Kuwano⁹, Seiya Fujishima⁹, Akane Yamamoto^1,10, Natsuki Nomura¹¹, Aya Osanai¹¹, Keita Kono¹¹, Issui Ikuma¹¹, Chika Onai¹², Yusei Miyamoto¹², Yuka Taira⁸, Yu Miyagi⁸, Soma Sato⁶, Michelle M. Nishimoto^13,1, Yukihiko Nakano¹⁴, Hikaru Iwamaru¹⁵, Yu Suzuki¹⁶ (1.Geological Survey of Japan, AIST, 2.ERI, The University of Tokyo, 3.Marine Core Research Institute, Kochi University, 4.JAMSTEC, 5.AORI, The University of Tokyo, 6.Akita University, 7.Toyama University, 8.The University of Ryukyus, 9.Kyoto University, 10.Nihon University, 11.Kochi University, 12.Chiba University, 13.Japan Women's University, 14.Marine Works Japan Ltd., 15.Nippon Marine Enterprises, Ltd., 16.MOL Marine & Engineering Co., Ltd.)

Daisuke Kuwano¹, *Seiya Fujishima¹, Minoru Ikehara², Stephen Obrochta³, Makoto Otsubo⁴, Masataka Kinoshita⁵, KH-23-11 Shipboard Scientists (1.Kyoto University, 2.Marine Core Research Institute, Kochi University, 3.Akita University, 4.Geological Survey of Japan, Research Institute of Earthquake and Volcano Geology, 5.Earthquake Research Institute, University of Tokyo)

*Masataka Kinoshita¹, Makoto Otsubo², Ayanori Misawa², KH-23-11 Science Party -, KS-24-11 Science Party - (1.Earthquake Research Institute, University of Tokyo, 2.Geological SUrvey of Japan, AIST)

*Michelle M. Nishimoto^1,2, Hiroaki Koge², Chiori Tamura³, Yu Suzuki⁵, Makoto Otsubo², Masataka Kinoshita⁴, KH-23-11 Shipboard Scientists (1. Japan Women's University, 2.Geological Survey of Japan, AIST, 3.AORI, The University of Tokyo, 4.ERI, The University of Tokyo, 5.MOL Marine & Engineering Co., Ltd.)

*Tomohiro Toki^1,2, Yu Miyagi¹, Yuka Taira¹, Kae Miyazato¹, Takanori Kagoshima³, Akira Ijiri⁴, Yusuke Miyajima⁵, Ryuichi Shinjo^1,2, Makoto Otsubo⁵, Masataka Kinoshita⁶, KH-23-11 Shipboard Scientists (1.Faculty of Science, University of the Ryukyus, 2.RIHN, 3.Toyama University, 4.Kobe University, 5.AIST, 6.ERI)

*Chika Onai¹, Koji Kameo¹, Daisuke Kuwano², Makoto Otsubo³, Masataka Kinoshita⁴, KH-23-11 shipboard scientists (1.Chiba University , 2.Kyoto University, 3.Geological Survey of Japan, AIST, 4.ERI, The University of Tokyo)