*Yoko Tu¹, Kosuke HEKI¹ (1.Department of Natural historical sciences, Hokkaido University)

*Masataka ANDO¹, Ryoya IKUTA², Yoko Tu³, Horng-Yue Chen⁴, Cjeng-horng LIN⁴ (1.Center for Integrated Research and Education of Natural Disasters, 2.Graduate School of Science, Shizuoka University, 3.Department of Natural Historical Sciences, Hokkaido University, 4.Institute of Earth Sciences, Academia Sinica)

*Yoko Tu¹, Chih-wei Chien², Masataka ANDO³, Akihisa KITAMURA⁴, Masanobu SHISHIKURA⁵, Mamoru NAKAMURA⁶ (1.Department of Natural History Sciences, Hokkaido University, Japan, 2.Department of Earth Sciences, National Central University, Taiwan, 3.Center of Integrated Research and Education of Natural Hazards, Shizuoka University, 4.Institute of Geosciences, Faculty of Science, Shizuoka University, 5.Institute of Earthquake and Volcano Geology, National Institute of Advanced Industrial Science and T, 6.Faculty of Science, University of the Ryukyus)

Shota SHIGA¹, *Mamoru NAKAMURA¹, Kazuhiko FUJITA¹, Takeshi MATSUMOTO¹, Sakaki YAMASHIRO¹, Masataka ANDO², Akihisa KITAMURA², Ryoya IKUTA², Yoko Tu³ (1.Faclty of Science, University of the Ryukyus, 2.Shizuoka University, 3.Hokkaido University)

Shota SHIGA¹, *Mamoru NAKAMURA¹, Kazuhiko FUJITA¹, Takeshi MATSUMOTO¹, Sakaki YAMASHIRO¹, Masataka ANDO², Akihisa KITAMURA², Ryoya IKUTA², Yoko Tu³ (1.Faclty of Science, University of the Ryukyus, 2.Shizuoka University, 3.Hokkaido University)