*Seira Katagiri^1,2, Yui Kouketsu¹, Katsuyoshi Michibayashi^1,3 (1.Department of Earth and Planetary Sciences, GSES, Nagoya University, 2.Research Institute of Geology and Geoinformation, AIST, 3.Volcanoes and Earth's Interior Research Center, IMG, JAMSTEC)

*Ayu Harano¹, Katsuyoshi Michibayashi^1,2, Yui Kouketsu¹, Kenta Yoshida², Takenori Kato³ (1.Department of Earth and Planetary Sciences, GSES, Nagoya University, 2.Research Institute for Marine Geodynamics, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 3.Institute for Space-Earth Environmental Research, Nagoya University)

*Miharu Niwa^1,2, Katsuyoshi Michibayashi^1,3, Kenichiro Tani⁴, Takuma Nishimura⁵ (1.Department of Earth and Planetary Sciences, GSES, Nagoya University, 2.Toyohashi Museum of Natural History, 3.Volcanoes and Earth’s Interior Research, IMG, JAMSTEC, 4.National Museum of Nature and Science, 5.Houraijisan Museum of Natural History)

*Tomohiro Takebayashi^1,2, Yui Kouketsu¹, Katsuyoshi Michibayashi¹ (1.Graduate School of Environmental Studies, Nagoya University, 2.Museum of Natural and Environmental History, Shizuoka)

*Kazuki Matsuyama ¹, Katsuyoshi Michibayashi¹ (1.Department of Earth and Planetary Sciences, GSES, Nagoya University)

*Katsuyoshi Michibayashi^1,2, Natsume Itsuki^1,3 (1.Department of Earth and Planetary Sciences, GSES , Nagoya University, 2.Volcanoes and Earth's Interior Research Center, IMG, JAMSTEC, 3.Kanagawa Prefectural Museum of Natural History)

*Kohei Nimura¹, Katsuyoshi Michibayashi^1,2, Yumiko Harigane³, Yasuhiko Ohara^1,2,4 (1.Department of Earth and Planetary Sciences, GSES, Nagoya University, 2.Volcanoes and Earth’s Interior Research Center, IMG, JAMSTEC, 3.Research Institute of Geology and Geoinformation, Geological Survey of Japan, AIST, 4.Hydrographic and Oceanographic Department of Japan)

*Takeo Okuwaki¹, Natsume Itsuki^1,2, Katsuyoshi Michibayashi^1,3 (1.Department of Earth and Planetary Sciences, GSES, Nagoya University, 2.Kanagawa Prefectural Museum of Natural History, 3.Volcanoes and Earth's Interior Research Center, IMG, JAMSTEC)

*So Inoue¹, Katsuyoshi Michibayashi^1,2, Yumiko Harigane³, Yasuhiko Ohara^1,2,4 (1.Department of Earth and Planetary Sciences, GSES, Nagoya University, 2.Volcanoes and Earth's Interior Research, IMG, JAMSTEC, 3.Research Institute of Geology and Geoinformation, Geological Survey of Japan, AIST, 4.Hydrographic and Oceanographic Department of Japan)

*Kazuki Matsuyama ¹, Katsuyoshi Michibayashi¹ (1.Department of Earth and Planetary Sciences, GSES, Nagoya University)

*Wenzhao DONG¹, Yui Kouketsu¹, Katsuyoshi Michibayashi¹, Takenori Kato² (1. Department of Earth and Planetary Sciences, GSES, Nagoya University, 2.Institute for Space–Earth Environmental Research, Nagoya University)

*Natsume Itsuki^1,2, Yui Kouketsu¹, Katsuyoshi Michibayashi^1,3, Atsushi Okamoto⁴ (1.Department of Earth and Planetary Sciences, GSES, Nagoya University, 2.Kanagawa Prefectural Museum of Natural History, 3.Volcanoes and Earth’s Interior Research Center, IMG, JAMSTEC, 4.Research School of Environmental Studies, Tohoku University)

*Yasuhiko Ohara^1,2,3, Yumiko Harigane⁴, Masakazu Fujii⁵, Norikatsu Akizawa¹¹, Valentin Basch¹⁰, Carlotta Ferrando¹², Ikuo Katayama⁷, Katsuyoshi Michibayashi³, Akito Ogawa^8,2, Aya Takeuchi⁹, Makoto Takeuchi¹¹, Chiori Tamura¹¹, Ko Tomikawa⁷, Shun Watanabe⁹, Hiroyuki Yamashita⁶, KH-23-9 Onboard Students (1.Hydrographic and Oceanographic Department of Japan, 2.Japan Agency for Marine-Earth Science and Technology, 3.Nagoya University, 4.Geological Survey of Japan/AIST, 5.National Institute of Polar Research, 6.Kanagawa Prefectural Museum of Natural History, 7.Hiroshima University, 8.National Museum of Nature and Science, 9.Kindai University, 10.CNR, 11.AORI, 12.University of Genoa)

*Katsuyoshi Michibayashi^1,2 (1.Department of Earth and Planetary Sciences, GSES , Nagoya University, 2.Volcanoes and Earth's Interior Research Center, IMG, JAMSTEC)