*Takuto Minami¹, Mitsuru Utsugi² (1.Ocean Hemisphere Research Institute, Earthquake Research Institute,The University of Tokyo, 2.Aso Volcanological Laboratory, Kyoto University)

*Ruiqing Zhang¹, Yan Wu¹, Lian Sun¹, Qingju Wu¹, Zhifeng Ding¹ (1.Institute of Geophysics, China Earthquake Administration)

*Tomohiro Toki¹, Ko Agena¹, Akira Ijiri², Juichiro Ashi³ (1.Faculty of Science, University of the Ryukyus, 2.JAMSTEC, 3.AORI)

Chanmaly Chhun¹, Arata Kioka², *Takeshi Tsuji¹ (1.Kyushu Univ., 2.Univ. Innsbruck)

Walter Menapace¹, Alexander Rösner¹, *Miho Asada^2,3, Christian Dos Santos Ferreira¹, Norbert Kaul⁴, Achim Kopf¹, SO251b onboard scientific party (1.MARUM, Center for Marine and Environmental Science, 2.Japan Society for the Promotion of Science, 3.Japan Agency for Marine-Earth Science and Technology, 4.Department of Geosciences, University of Bremen)

*Miho Asada^1,2 (1.Japan Society for the Promotion of Science, 2.Japan Agency for Marine-Earth Science and Technology)

*Haryo Edi Wibowo^1,2, Mitsuhiro Nakagawa¹, Ryuta FURUKAWA³, Akira Takada³, Oktory Prambada⁴ (1.Department of Natural History of Science, Faculty of Science, Hokkaido University, Japan, 2.Geological Engineering Department, Faculty of Engineering, Gadjah Mada University, Indonesia, 3.Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology, Japan, 4.Center of Volcanological and Geological Hazard Mitigation, Ministry of Energy and Mineral Resources, Indonesia)

*Shingo Takeuchi¹, Shimpei Uesawa¹ (1.Central Research Institute of Electric Power Industry, Civil Engineering Research Laboratory, Geosphere Sciences)

*Tatsuro Chiba¹, Hisashi Sasaki¹, Kenichi Arai¹, Mikako Sano¹ (1.Asia Air Survey Co., Ltd.)

*Daisuke Nagai¹ (1.Mt.Unzen disaster memorial hall)