[M-IS15] Tsunami deposit: research progress after the 2011 Tohoku-oki earthquake and prospects

Sun. Jun 6, 2021 5:15 PM - 6:30 PM Ch.19

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

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 has been still uncertain how to use the tsunami deposit to estimate its size and source and the risk assessment. As it commemorates the 10th anniversary of the 2011 off the Pacific coast of Tohoku Earthquake, we would like to review research progress over the past decade and share in the vision of future researches. In this session, we welcome research 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 floodings and storm surges, that they are considered important for identification of tsunami deposits in geological strata.

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5:15 PM - 6:30 PM

[MIS15-P01] A study for correlation of mega-tsunami in the Kuril Trench based on the tsunami deposits in the Erimo area, Hokkaido

*RYO NAKANISHI¹, Juichiro Ashi^1,2, Yosuke Miyairi¹, Yusuke Yokoyama^1,3 (1.Atmosphere and Ocean Research Institute, The University of Tokyo, 2.Graduate School of Frontier Science, The University of Tokyo, 3.Department of Earth and Planetary Sciences, Graduate School of Science, The University of Tokyo)

5:15 PM - 6:30 PM

[MIS15-P02] Characteristics of event deposits and their distributions based on a drilling survey in Sekine-hama, the northern part of the Shimokita Peninsula, Aomori Prefecture

*Daisuke Ishimura¹, Masaki Yamada², Takashi Ishizawa³, Kaori Aoki⁴, Kai Sato² (1.Department of Geography, Tokyo Metropolitan University, 2.Department of Geology, Faculty of Science, Shinshu University, 3.International Research Institute of Disaster Science, Tohoku University, 4. Research Center for Volcanic Hazards and Their Mitigation, Tokyo Metropolitan University)

5:15 PM - 6:30 PM

[MIS15-P03] Tsunami source estimation of paleotsunami deposits formed in the 17th century at Sekinehama, northern Shimokita Peninsula, Aomori Prefecture

*Kai Sato¹, Masaki Yamada¹, Daisuke Ishimura², Takashi Ishizawa³, Toshitaka Baba⁴ (1.Depatment of Geology, Faculty of Science, Shiushu University, 2.Department of Geography, Tokyo Metropolitan University , 3.International Research Institute of Disaster Science, Tohoku University, 4.Graduate School of Science and Technology, Tokushima University)

5:15 PM - 6:30 PM

[MIS15-P04] Revised paleotsunami history at Kirikiri, Northeast Japan

*Takashi Ishizawa¹, Yusuke Yokoyama², Yosuke Miyairi² (1.International Research Institute of Disaster Science, Tohoku University, 2.Atmosphere and Ocean Research Institute, the University of Tokyo)

5:15 PM - 6:30 PM

[MIS15-P05] Distribution and characteristics of the 1983 Nihonkai-chubu earthquake tsunami deposit along the Akita coastal area, Japan

*Takashi Chiba¹, Yuichi Nishimura² (1.Faculty of Bioresource Sciences, Akita Prefectural University, 2.Institute of Seismology and Volcanology (ISV), Faculty of Science, Hokkaido University)

5:15 PM - 6:30 PM

[MIS15-P06] Event deposits in a coastal lake at Minami-ise Town, Mie Prefecture during the last 3000 years

*Yumi Shimada¹, Yuki Sawai¹, DAN MATSUMOTO¹, Koichiro Tanigawa¹, Yuichi Namegaya¹, Masanobu Shishikura¹, Kazumi Ito¹, Toru Tamura¹, Shigehiro Fujino² (1.Geological Survey of Japan, AIST, 2.Faculty of Life and Environmental Sciences, University of Tsukuba)

5:15 PM - 6:30 PM

[MIS15-P07] Distributions and occurrences of sandy tsunami deposits in caves located along the East Coast of Ishigaki Island, Okinawa Prefecture

*Yoshiro Ishihara¹, Miyu Kitahara¹, Yuuka Okita¹, Ayano Shimabukuro², Hajime Naruse³, Chiaki Katagiri⁴, Rintaro Ono⁵, Kazuhisa Yoshimura⁶ (1. Fukuoka Univ., 2.Yaeyama Museum, 3.Kyoto Univ., 4.Okinawa Prefectural Archaeological Center, 5.National Museum of Ethnology, 6.Kyushu Univ.)

5:15 PM - 6:30 PM

[MIS15-P08] Examining grain-size changes in sediment transport modeling of the 2011 Tohoku-oki tsunami in the Sendai Plain

*Wataru Nakamura¹, Daisuke Sugawara¹ (1.Tohoku University)

5:15 PM - 6:30 PM

[MIS15-P09] Comparison of Observations and Numerical Simulations of Sediment Transport Using the 1707 CE Hoei Tsunami Source Model: Application to Kanigaike Pond in Kochi Prefecture, Japan

*Satoshi Kusumoto¹, Kentaro Imai¹, Narumi Takahashi^2,1, Takane Hori¹, Daisuke Sugawara³ (1.JAMSTEC, 2.NIED, 3.Tohoku University)

5:15 PM - 6:30 PM

[MIS15-P10] Uncertainty of geological information used in identification of tsunami deposit - Preliminary assessment –

*Takumi Yoshii¹, Takaomi Hamada¹, Yuki Ito¹, Shiro Tanaka¹, Masafumi Matsuyama¹ (1.Central Research Institute of Electric Power Industry)

Session information

[M-IS15] Tsunami deposit: research progress after the 2011 Tohoku-oki earthquake and prospects

[MIS15-P01] A study for correlation of mega-tsunami in the Kuril Trench based on the tsunami deposits in the Erimo area, Hokkaido

[MIS15-P02] Characteristics of event deposits and their distributions based on a drilling survey in Sekine-hama, the northern part of the Shimokita Peninsula, Aomori Prefecture

[MIS15-P03] Tsunami source estimation of paleotsunami deposits formed in the 17th century at Sekinehama, northern Shimokita Peninsula, Aomori Prefecture

[MIS15-P04] Revised paleotsunami history at Kirikiri, Northeast Japan

[MIS15-P05] Distribution and characteristics of the 1983 Nihonkai-chubu earthquake tsunami deposit along the Akita coastal area, Japan

[MIS15-P06] Event deposits in a coastal lake at Minami-ise Town, Mie Prefecture during the last 3000 years

[MIS15-P07] Distributions and occurrences of sandy tsunami deposits in caves located along the East Coast of Ishigaki Island, Okinawa Prefecture

[MIS15-P08] Examining grain-size changes in sediment transport modeling of the 2011 Tohoku-oki tsunami in the Sendai Plain

[MIS15-P09] Comparison of Observations and Numerical Simulations of Sediment Transport Using the 1707 CE Hoei Tsunami Source Model: Application to Kanigaike Pond in Kochi Prefecture, Japan

[MIS15-P10] Uncertainty of geological information used in identification of tsunami deposit - Preliminary assessment –

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