*Toshiya Fujiwara^1,9, Shuichi Kodaira¹, Gou Fujie¹, Yuka Kaiho¹, Toshiya Kanamatsu¹, Takafumi Kasaya², Yasuyuki Nakamura¹, Tetsuo No¹, Tsutomu Takahashi¹, Takeshi Sato³, Narumi Takahashi^4,1, Yoshiyuki Kaneda^5,1, Katharina Bachmann⁶, Christian dos Santos Ferreira⁶, Gerold Wefer⁶, Michael Strasser⁷, Tianhaozhe Sun⁸ (1.Research Institute for Marine Geodynamics, Japan Agency for Marine-Earth Science and Technology, 2.Research Institute for Marine Resources Utilization, Japan Agency for Marine-Earth Science and Technology, 3.Sapporo Regional Headquarters, Japan Meteorological Agency, 4.National Research Institute for Earth Science and Disaster Resilience, 5.Kagawa University, 6.MARUM, University of Bremen, 7.Institute of Geology, University of Innsbruck, 8.Pacific Geoscience Centre, Geological Survey of Canada, 9.Kochi University)

*Tetsuo No¹, Shuichi Kodaira¹, Hiroshi Sato², Tatsuya Ishiyama², Ryo Miura¹, Gou Fujie¹, Norio Shimomura³, Takeshi Sato⁴ (1.JAMSTEC, 2.ERI, University of Tokyo, 3.Nippon Marine Enterprises, 4.Sapporo Regional Headquarters, JMA)