*Ryo Oyanagi¹, Takahito Kazama¹, Keigo Yamamoto², Hiromitsu Oshima³, Kazumi Okada³, Tadaomi Sonoda², Masato Iguchi² (1.Graduate School of Science, Kyoto University, 2.DPRI, Kyoto University, 3.ISV, Hokkaido University)

*Shin'ya Onizawa¹ (1.Volcanology Research Department, Meteorological Research Institute, JMA)

*Satoshi Fujiwara¹, Yu Morishita¹, Takayuki Nakano¹, Yuji Miura¹, Yasuaki Kakiage¹, MURAMATSU Hiroki¹, Hiroshi Une¹ (1.GSI of Japan)

*Shuhei Totsuka¹, Jun-ichiro Ishibashi², Kazuhiko Shimada², Kei Ikehata³, Hideaki Machiyama⁴, Koichi Iijima⁴, Hirofumi Yamamoto⁴, Hidenori Kumagai⁴, Ken Ikehara⁵, Toru Yamasaki⁵, Yutaro Takaya⁶, Toshiro Nagase⁷, Thomas Tindell⁸, Kotaro Yonezu⁸, Yuki Tada⁸ (1.Department of Earth and Planetary Sciences, Graduate School of Sciences, Kyushu University, 2.Department of Earth and Planetary Sciences, Faculty of Science, Kyushu University, 3.Faculty of Life and Environmental Sciences, University of Tsukuba, 4.Research and Development Center for Submarine Resources, JAMSTEC, 5.Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology, 6.Department of Resources and Environmental Engineering School of Creative Science and Enginerring, Waseda University, 7.Tohoku University Museum, 8.Department of Earth Resources Engineering, Faculty of Engineering, Kyushu University)

Akihi Tsutsumi¹, Naru Tsukamoto¹, Kazuhiko Shimada¹, *Jun-ichiro Ishibashi¹, Ryuichi Shinjo² (1.Department of Earth and Planetary Sciences, Kyushu University, 2.Faculty of Science, University of Ryukyus)

*Keishiro Azami¹, Shiki Machida², Naoto Hirano³, Tetsu Kogiso⁴, Yasuhiro Kato^1,2 (1.Department of System Innovation, School of Engineering, The University of Tokyo, 2.Ocean Resources Research Center for Next Generation, Chiba Institute of Technology, 3.Center for Northeast Asian Studies, Tohoku University, 4.Graduate School of Human and Environmental Studies, Kyoto University)

*Kouta Sasaki¹, Makoto Yamano¹, Yoshifumi Kawada², Masataka Kinoshita¹, Kiichiro Kawamura³ (1.Earthquake Research Institute, the University of Tokyo, 2.International Research Institute of Disaster Science, Tohoku University, 3.Yamaguchi University)

*Ken-ichi Hirauchi¹ (1.Department of Geosciences, Faculty of Science, Shizuoka University)

*Masakazu Fujii¹, Kyoko Okino² (1.National Institute of Polar Research and SOKENDAI, 2.Atmosphere and Ocean Research Institute, The University of Tokyo)

*Jun-ichiro Ishibashi^1,2, Shuhei Totsuka², Akihi Tsutsumi², Naru Tsukamoto², Yusuke Kira², Kazuhiko Shimada¹, Toru Yamasaki³, Ken Ikehara³, Toshiro Nagase⁴, Yutaro Takaya^5,9, Kei Ikehata⁶, Takashi Goto⁷, Chitaro Gouzu⁷, Ryuichi Shinjo⁸, Hideaki Machiyama⁹, Koichi Iijima⁹, Hirofumi Yamamoto⁹, Hidenori Kumagai⁹ (1.Department of Earth and Planetary Sciences, Kyushu University, 2.Graduate School of Science, Kyushu University, 3.National Institute of Advanced Industrial Science and Technology, 4.Tohoku University Museum, 5.School of Creative Science and Enginerring, Waseda University, 6.Faculty of Life and Environmental Sciences, University of Tsukuba, 7.Hiruzen Institute for Geology and Chronology, 8.Faculty of Science, University of the Ryukyus, 9.Japan Agency for Marine-Earth Science and Technology)