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23G-04_1_04.pdf | 740.86 kB | Adobe PDF | 見る/開く |
タイトル: | Reconstruction of the 869 Jogan Earthquake, the predecessor of the 2011 Tohoku earthquake, by geological evidence combined with tsunami simulation |
著者: | Shishikura, Masanobu Sawai, Y. Namegaya, Y. |
発行日: | 2011 |
誌名: | Proceeding of TC302 Symposium Osaka 2011 : International Symposium on Backwards Problem in Geotechnical Engineering and Monitoring of Geo-Construction |
開始ページ: | 25 |
終了ページ: | 28 |
論文番号: | 共同研究(一般共同研究)23G-04 |
抄録: | We reconstructed the tsunami inundation area of the 869 Jogan earthquake by geological evidence such as tsunami deposit, and inferred fault source model by tsunami simulation. From analysis of nearly 400 geological core samples obtained from the Sendai and Ishinomaki Plains, it is inferred that the 869 Jogan tsunami inundated to 3-4 km further inland from shoreline and was generated from subduction megathrust fault which has 200 km long and 100 km width off Miyagi and Fukushima. Magnitude and source of the Jogan tsunami is very similar to the 2011 Tohoku earthquake. |
記述: | International Symposium on Backwards Problem in Geotechnical Engineering and Monitoring of Geo-Construction, Green Hall, Kensetsu-Koryu-kan, 2011/07/14-15 |
URI: | http://hdl.handle.net/2433/173848 |
出現コレクション: | International Symposium on Backwards Problem in Geotechnical Engineering and Monitoring of Geo-Construction |
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