*Masanori Murata¹, Takayuki Takahashi², Kaori Aoki¹, Junichi Sato³, Takehiko Suzuki^1,4 (1.Research Center for Volcanic Hazards and Their Mitigation, Tokyo Metropolitan University, 2.International Research Institute of Disaster Science, Tohoku University, 3.Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 4.Faculty of Urban Environmental Sciences, Tokyo Metropolitan University)

*Kaori Aoki¹, Reona Hiramine², Daisuke Ishimura^2,1, Tatsuki Watanabe², Takehiko Suzuki^2,1 (1.Research Center for Volcanic Hazards and Their Mitigation, Tokyo Metropolitan University, 2.Department of Geography, Tokyo Metropolitan University)

*Reona Hiramine¹, Daisuke Ishimura¹, Kaori Aoki², Takehiko Suzuki¹, Tsutomu Soda³, Tatsuki Watanabe¹, Motoko Yamada⁴, Toshihiko Ichihara^5,6, Keitaro Yamada⁷ (1.Department of Geography, Tokyo Metropolitan University, 2.Research Center for Volcanic Hazards and Their Mitigation, Tokyo Metropolitan University, 3.Institute of Tephrochronology for Nature and History Co., Ltd., 4.Department of Geography, Tokyo Metropolitan University., 5.Sedimentary Environments Research, 6.Research Center for Coastal Seafloor, Kyushu Universit, 7.Research Centre for Palaeoclimatology, Ritsumeikan University)

*Iona McIntosh¹, Kaori Aoki² (1.Institute for Marine Geodynamics, Japan Agency for Marine-Earth Science and Technology, 2.Research Center for Volcanic Hazards and their Mitigation, Tokyo Metropolitan University)