Kohei Iwaki¹, *Yasuhiro Takashimizu¹, Yuichi Nishimura² (1.Geology Lab., Fuclty of Education, Niigata University, 2.Institute of Seismology and Volcanology, Faculty of Science, Hokkaido University )

*Yuichi Nishimura¹, Yasuhiro Takashimizu², Kohei Iwaki², Takashi Ishizawa³, Daisuke Sugawara³, Yusuke Yokoyama⁴, Yosuke Miyairi⁴ (1.Graduate School of Science, Hokkaido University, 2.Faculty of Education, Niigata University, 3.International Research Institute of Disaster Science, Tohoku University, 4.Atmosphere and Ocean Research Institute, The University of Tokyo)

*Yuito Sato¹, Daisuke Sugawara², Takashi Ishizawa², Atsushi Urabe³, Yasuhiro Takashimizu⁴, Manabu Kato⁵, Tsuyoshi Kawata⁶ (1.TOHOKU UNIVERSITY, 2.International Research Institute of Disaster Science, Tohoku University, 3.Research Institute for Natural Hazards and Disaster Recovery, Niigata University, 4. Mathematical and Natural Sciences, Institute of Humanities, Social Sciences and Education, Niigata University, 5.Niigata Prefecture Archaeological Research Corporation, 6.Minamisoma City Board of Education)

*Shigehiro Fujino¹, Arisa Suwa², Dan Matsumoto³, Tetsuya Shinozaki⁴ (1.Faculty of Life and Environmental Sciences, University of Tsukuba, 2.Graduate School of Science and Technology, University of Tsukuba, 3.National Institute of Advanced Industrial Science and Technology, 4.National Museum of Japanese History)

*Kenta Minamidate^1,2, Kazuhisa Goto² (1.Graduate School of Science, Tohoku University, 2.Department of Earth and Planetary Science, The University of Tokyo)