*Kazuhisa Goto¹, Yuya Ikenaga¹, Saula Mule², Joji Malodali², Fukashi Maeno³, Tatsuji Nishizawa⁴, KANEKO Takayuki³, Mie Ichihara³ (1.Department of Earth and Planetary Science, The University of Tokyo, 2.Mineral Resource Department, Fiji, 3.Earthquake Research Institute, The University of Tokyo, 4.Mount Fuji Research Institute, Yamanashi Prefectural Government)

*Yuri Kijima ¹, Hideaki Yanagisawa², Koki Nakata¹, Kazuhisa Goto¹ (1.The University of Tokyo, 2.Tohoku Gakuin University)

*Takuya Shimomaki¹, Atsuko Yamazaki^1,2, Ryohei Uchiyama³, Goto Akira⁴, Tomo Ishimura⁵, David Lecchini^6,7, Tsuyoshi Watanabe^2,3,8 (1.Graduate School of Environmental Studies , Nagoya University, 2.KIKAI institute for Coral Reef Sciences, 3.Graduate School of Science , Hokkaido University, 4.Anthropological Institute, Nanzan University, 5.Tokyo National Research Institute for Cultural Properties, 6.Université Paris Dauphin, 7.PSL Research University, 8.Research Institute for Humanity and Nature)

Yumeto Nakayama¹, Tsuyoshi Watanabe^2,3, Ryohei Uchiyama¹, Samuel Kahng^5,6, *Atsuko Yamazaki^4,5 (1.Graduate School of Science, Hokkaido University, 2.Research Institute for Humanity and Nature, 3.Faculty of Science, Hokkaido University, 4.Graduate School of Environmental Studies, Nagoya University, 5.KIKAI Institute for Coral Reef Sciences, 6.University of Hawaii, Manoa)