*Jonathan E Snow¹, Atlanta Sen², Yasuhiko Ohara^3,4,5, Ken-ichi Hirauchi⁶, Yui Kouketsu⁵, Alessio Sanfilippo⁷, Valentin Basch⁷, Yumiko Harigane⁸, Masakazu Fujii⁹, Kyoko Okino¹⁰, Norikatsu Akizawa¹⁰ (1.Department of Geology and Geophysics, Louisiana State University, Baton Rouge, LA 70803, USA, 2.Department of Earth and Atmospheric Sciences, University of Houston, Houston, TX 77204, USA, 3.Hydrographic and Oceanographic Department of Japan, Tokyo 100-8932, Japan, 4.Research Institute for Marine Geodynamics, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka 237-0061, Japan, 5.Graduate School of Environmental Studies, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan, 6.Department of Geosciences, Faculty of Science, Shizuoka University, Shizuoka, Japan, 7.Dipartimento di Scienze della Terra e dell'Ambiente, University of Pavia, Pavia, Italy, 8.Research Institute of Geology and Geoinformation, Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan, 9.National Institute of Polar Research/SOKENDAI, Tokyo, Japan, 10.Atmosphere and Ocean Research Institute, The University of Tokyo, Chiba, Japan)

*Kohei Nimura¹, Katsuyoshi Michibayashi^1,2, Yumiko Harigane³, Yasuhiko Ohara^1,2,4 (1.Graduate School of Earth and Environmental Studies, Nagoya University, 2.JAMSTEC, 3.Research Institute of Geology and Geoinformation, Geological Survey of Japan, AIST, 4.Hydrographic and Oceanographic Department of Japan)

*Yasuhiko Ohara^1,2,3, Yumiko Harigane⁴, Katsuyoshi Michibayashi³, Kyoko Okino⁵, Ryosuke Oyanagi⁶, Alessio Sanfilippo⁷, Jonathan E. Snow⁸, Marco Cuffaro⁹, Kohei Nimura³, Takaaki Moriguchi⁵ (1.Hydrographic and Oceanographic Department of Japan, 2.Japan Agency for Marine-Earth Science and Technology , 3.Nagoya University, 4.Geological Survey of Japan, 5.Atmosphere and Ocean Research Institute, University of Tokyo, 6.Kokushikan University, 7.University of Pavia, 8.Louisiana State University, 9.Institute of Environmental Geology and Geoengineering, National Research Council)

*Osamu Ishizuka^1,9, Kenichiro Tani², Rex N Taylor³, Susumu Umino⁴, Izumi Sakamoto⁵, Yuka Yokoyama⁵, Gen Shimoda¹, Yumiko Harigane¹, Yasuhiko Ohara^6,9,10, Chris E Conway¹, Americus Perez⁷, Shun Sekimoto⁸ (1.Geological Survey of Japan, AIST, 2.National Museum of Nature and Science, 3.University of Southampton, 4.Kanazawa University, 5.Tokai University, 6.Hydrographic and Oceanographic Department of Japan, 7.Philippine Nuclear Research Institute,, 8.Kyoto University, 9.JAMSTEC, 10.Nagoya University)

*Takaaki Moriguchi¹, Kyoko Okino¹, Yasuhiko Ohara², Yumiko Harigane³, Matamura Yuki⁴ (1.Atmosphere and Ocean Research Institute, The University of Tokyo, 2.Hydrographic and Oceanographic Department of Japan /JAMSTEC/ Nagoya University, 3.Geological Survey of Japan, AIST, 4.Tohoku University)

*Kyoko Okino¹, Yasuhiko Ohara², Yumiko Harigane³, Osamu Ishizuka³, Kenichiro Tani⁴, Masakazu Fujii⁵, Takaaki Moriguchi¹ (1.Atmosphere and Ocean Research Institute, The University of Tokyo, 2.Japan Coast Guard/JAMSTEC/Nagoya University , 3.Geological Survey of Japan, AIST, 4.National Museum of Nature and Science, 5.National Institute of Polar Research)