[M-IS12] tsunami deposit

Thu. May 30, 2019 9:00 AM - 10:30 AM Convention Hall B (2F)

convener:Takashi Chiba(Faculty of Bioresource Sciences, Akita Prefectural University), Tetsuya Shinozaki(Center for Research in Isotopes and Environmental Dynamics (CRiED), University of Tsukuba), Daisuke Ishimura(Department of Geography, Tokyo Metropolitan University), Chairperson:Daisuke Ishimura(Department of Geography, Tokyo Metropolitan University)

The 2011 off the Pacific coast of Tohoku Earthquake and tsunami have an influence on the development of tsunami deposit research. After the tsunami, a lot of findings have been reported on various research fields. However, identification criteria of the tsunami deposit are not yet established. Moreover, it is still uncertain how to use the tsunami deposit in the risk assessment. In this session, we welcome researches from all aspect of sedimentary records of modern and paleo tsunamis both onshore and offshore, and numerical and experimental modeling studies for risk assessment. In addition, we also welcome other event deposits, such as flooding and storm surge, that they are considered to be important for discrimination of tsunami deposit.

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9:00 AM - 9:15 AM

[MIS12-01] Geological Record of Tsunamis and Storms Influenced by Relative Sea-Level Change, Southern Hidaka Coast, Hokkaido, Japan.

*RYO NAKANISHI¹, Satoshi Okamura^1,2, Tsumoru Sagayama³, Yusuke Yokoyama⁴, Yosuke Miyairi⁴ (1.Hokkaido Edu. Univ., 2.Hokkaido Soil Res. Co-op., 3.HRCG, 4.Univ. Tokyo )

9:15 AM - 9:30 AM

[MIS12-02] Before and after relationship between the seismic uplift and the large tsunami due to the seventeenth-century giant earthquake observed in the seismic barrier systems around the Kuril subduction zone

*Futoshi Nanayama^1,5, Kazuaki Watanabe¹, Keita Fukatsu², Takeshi Hasegawa⁴, Kiyoyuki Shigeno³, Masayuki Ishii⁶, Kazuhito Ishiwata⁷, Shigeto Inokuma⁸ (1.Geological Survey of Japan, AIST, 2.Notsuke Peninsula Nature Center, 3.Meiji consultant Co., Ltd., 4.Ibaraki University, 5.CWMD, Kumamoto Univ., 6.Ishii Professional Engineer Office, 7.Betsukai municipal museum, 8.Nemuro City museum history and nature)

9:30 AM - 9:45 AM

[MIS12-03] Coastal landform changes and Washover deposits due to high waves generated by anatmospheric low-pressure system in June 2016 at Horokayanto, Hokkaido, Japan

*Takashi Chiba¹, Yuichi Nishimura² (1.Faculty of Bioresource Sciences, Akita Prefectural University, 2.Graduate School of Science, Hokkaido University)

9:45 AM - 10:00 AM

[MIS12-04] Survey of tsunami deposits in Kunashiri Island: Results obtained in the 2015-2018 projects

*Yuichi Nishimura¹, Yasuhiro Takashimizu², Daisuke Sugawara³, Takafumi Enya⁴, Takashi Chiba⁵, Ryo Nakanishi⁶, Alexander Shishkin⁷, Alexey Gorbunov⁸, Victor Kaistrenko⁸, Asuka Takahashi⁹, Hiroki Muramatsu¹⁰, Yasuyuki Kawazoe¹¹, Naofumi Takamatsu¹¹ (1.Graduate School of Science, Hokkaido University, 2.Institute of Humanities, Social Sciences and Education, Niigata University, 3.Museum of Natural and Environmental History, Shizuoka, 4.Hokkaido Museum, 5.Faculty of Bioresource Sciences, Akita Prefectural University, 6.Hokkaido Education University, 7.Shikotan Geophysical Observatory, 8.Institute of Marine Geology and Geophysics, Russian Academy of Sciences, 9.Japan Meteorological Agency, 10.Geospatial Information Authority of Japan, 11.Ministry of Education, Culture, Sports, Science and Technology)

10:00 AM - 10:15 AM

[MIS12-05] Deposit-based assessment of tsunami size: example from Nankai-Trough earthquakes

*Daisuke Sugawara¹, Kentaro Imai², Shinsuke Okada³, Takuto Maeda⁴ (1.Museum of Natural and Environmental History, Shizuoka, 2.JAMSTEC, 3.Tohoku University, 4.Hirosaki University)

10:15 AM - 10:30 AM

[MIS12-06] Flume experiments for understanding variety of tsunami deposit

★Invited Papers

*Naofumi Yamaguchi¹ (1.Center for Water Environment Studies, Ibaraki University)

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