[M-IS11] Tsunami deposit

Thu. May 29, 2025 3:30 PM - 5:00 PM 301A (International Conference Hall, Makuhari Messe)

convener:Masaki Yamada(Department of Geology, Faculty of Science, Shinshu University), Takashi Ishizawa(International Research Institute of Disaster Science, Tohoku University), Koichiro Tanigawa(Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology), RYO NAKANISHI(National Institute of Advanced Industrial Science and Technology), Chairperson:Koichiro Tanigawa(Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology), Masaki Yamada(Department of Geology, Faculty of Science, Shinshu University)

The 2011 off the Pacific coast of Tohoku Earthquake and associated tsunami have an influence on the development of tsunami deposit research. After the tsunami, a lot of findings have been reported in various research fields. However, it had been still uncertain how to use the tsunami deposit to estimate its size and source of past tsunamis and future risk assessment. In this session, we welcome researches from all aspects of sedimentary records of modern and paleo tsunamis and numerical and experimental modeling studies for risk assessment. We also include research on other event deposits, such as river floods and storm surges, that they are considered important for identification of tsunami deposits in geological strata.

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3:30 PM - 3:45 PM

[MIS11-07] Temporal change of the 2011 off the Pacific coast of Tohoku Earthquake tsunami deposits in the shallow marine area.

*Yuka Yokoyama¹, Haruka Akagi², Satoshi Watanabe³, Izumi Sakamoto¹ (1.School of Marine Science and Technology, Tokai University, 2.Hokuryo junior high school, Tsuyama city, 3.Graduate School of Oceanography, Tokai University)

3:45 PM - 4:00 PM

[MIS11-08] Gravelly tsunami deposit formed by the 2011 Tohoku-oki tsunami in the Attari District, northeastern Japan

*Hidetoshi Masuda¹, Haruki Imura², Koki Nakata², Takashi Ishizawa³, Daisuke Sugawara³, Kazuhisa Goto² (1.Department of Earth Science, Graduate School of Science, Tohoku University, 2.Department of Earth and Planetary Science, The University of Tokyo, 3.International Research Institute of Disaster Science, Tohoku University)

4:00 PM - 4:15 PM

[MIS11-09] Sedimentation effects of the 2011 Tohoku-Oki Tsunami on coastal lakes: A case study of Agawa-numa, Shichigahama, Miyagi.

*Yusuke Hara¹, Daisuke Sugawara², Takashi Ishizawa² (1.Department of Earth Science, Tohoku University, 2.International Research Institute of Disaster Science)

4:15 PM - 4:30 PM

[MIS11-10] Reexamination of ages of event deposits and their correlation to historical tsunamis in the southern Sanriku Coast

*Sakurako Ouchi¹, Daisuke Sugawara², Takashi Ishizawa², Yasuhiro Takashimizu³, Atsushi Urabe⁴, Tetsuya Shinozaki⁵ (1.Tohoku University, 2.International Research Institute of Disaster Science, Tohoku University , 3.Mathematical and Natural Sciences, Institute of Humanities, Social Science and Education, Niigata University, 4.Research Institute for Natural Hazards and Disaster Recovery, Niigata University, 5.Department of Earth and Planetary Science, The University of Tokyo)

4:30 PM - 4:45 PM

[MIS11-11] Paleotsunami history in the central Joban Coast during the last 6300 years

Yuito Sato¹, *Daisuke Sugawara², Takashi Ishizawa², Atsushi Urabe³, Yasuhiro Takashimizu⁴, Manabu Kato⁵, Tsuyoshi Kawata⁶, Kyohei Yoshioka⁷ (1.Graduate School of Science, 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, 7.Namie Town Board of Education)

4:45 PM - 5:00 PM

[MIS11-12] “Maximum possible tsunami” along the eastern Nankai Trough from the perspective of tsunami deposit studies

★Invited Papers

*Osamu Fujiwara¹ (1.Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology)

Session information