*Daisuke Suetsugu¹, Hajime Shiobara², Hiroko Sugioka³, Aki Ito¹, Takehi Isse², Yasushi Ishihara¹, Satoru Tanaka¹, Masayuki Obayashi¹, Takashi Tonegawa¹, Junko Yoshimitsu¹, Takumi Kobayashi³ (1.institute for Marine Geodynamics, Japan Agency for Marine-Earth Science and Technology, 2.Earthquake Research Institute, the University of Tokyo, 3.Department of Planetrology, Graduate School of Science Kobe University)

*Yuki Kawano¹, Takehi Isse¹, Akiko Takeo¹, Hitoshi Kawakatsu¹, Hajime Shiobara¹, Nozomu Takeuchi¹, Hiroko Sugioka², YoungHee Kim³, Hisashi Utada¹, Sang-Mook Lee³ (1.Earthquake Research Institute, The University of Tokyo, 2.Kobe University, 3.Seoul National University)

*Takehi Isse¹, Hitoshi Kawakatsu¹, Hajime Shiobara¹, Nozomu Takeuchi¹, Hiroko Sugioka², Younghee Kim³, Hisashi Utada¹, Sang-Mook Lee³, Kazunori Yoshizawa⁴ (1.Earthquake Research Institute, the University of Tokyo, 2.Department of Planetology, Kobe University, 3.Seoul National University, 4.Faculty of Science, Hokkaido University)

*Kiyoshi Baba¹, Bernhard Steinberger^2,3, Marion Jegen⁴, Max Moorkamp⁵, Takehi Isse¹, Akiko Takeo¹, Antje Schlömer⁵, HEB Research group (1.Earthquake Research Institute, The University of Tokyo, 2.GFZ, Helmholtz Centre, Potsdam, 3.CEED, University of Oslo, 4.GEOMAR, Helmholtz Centre of Ocean Research Kiel, 5.Munich University)

*Hajime Shiobara¹, Hisashi Utada¹, Seung-Sep Kim², YoungHee Kim³, Kiyoshi Baba¹, Takehi Isse¹, Hogyum Kim³, HyeJeong Kim¹, Hiroko Sugioka⁴, Nozomu Takeuchi¹, Yuki Kawano¹, Hitoshi Kawakatsu¹, Sang-Mook Lee³, Onboard scientists of 2018/2019 Oldest cruises (1.Ocean Hemisphere Research Center, Earthquake Research Institute, University of Tokyo, 2.Chungnam National University, 3.Seoul National University, 4.Kobe University)

*Nozomu Takeuchi¹, Hitoshi Kawakatsu¹, Hajime Shiobara¹, Takehi Isse¹, Hiroko Sugioka², Aki Ito³, Hisashi Utada¹ (1.Earthquake Research Institute, University of Tokyo, 2.Kobe University, 3.JAMSTEC)

*Hyunsun Kang¹, Younghee Kim¹, Shu-Huei Hung², Pei-Ying Patty Lin³, Takehi Isse⁴, Hajime Shiobara⁴, Hitoshi Kawakatsu⁴, Sang-Mook Lee¹, Hisashi Utada⁴, Nozomu Takeuchi⁴ (1.Seoul National University, 2.National Taiwan University, 3.National Taiwan Normal University, 4.Earthquake Research Institute, The University of Tokyo)

*Gou Fujie¹, Koichiro Obana¹, Yojiro Yamamoto¹, Tomoaki Yamada², Takehi Isse², Shuichi Kodaira¹, Seiichi Miura¹ (1.Japan Agency for Marine-Earth Science and Technology, 2.Earthquake Research Institute, Univ. of Tokyo)