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Fault Model of the 1804 Kisakata Earthquake (Akita, Japan)
https://nied-repo.bosai.go.jp/records/3394
https://nied-repo.bosai.go.jp/records/3394bd7261e2-fbe2-49d1-9a02-7428b4ae0328
| Item type | researchmap(1) | |||||||||||||||
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| 公開日 | 2023-03-30 | |||||||||||||||
| タイトル | ||||||||||||||||
| 言語 | en | |||||||||||||||
| タイトル | Fault Model of the 1804 Kisakata Earthquake (Akita, Japan) | |||||||||||||||
| 言語 | ||||||||||||||||
| 言語 | eng | |||||||||||||||
| 著者 |
Kentaro Imai
× Kentaro Imai
× Shinsuke Okada
× Narumi Takahashi
× Yuichi Ebina
× Yoshinobu Tsuji
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| 抄録 | ||||||||||||||||
| 内容記述タイプ | Other | |||||||||||||||
| 内容記述 | <title>Abstract</title> The 10 July 1804 Kisakata earthquake occurred offshore Kisakata (Akita, Japan), and widespread felt shaking was reported from Matsumae (Hokkaido) to Ohmi-Hachiman (Shiga Prefecture). The earthquake caused strong ground motions that extensively damaged areas near the epicenter, such as along the coast of Kisakata, and the resultant tsunami caused extensive damage along the coast from Kisakata to Sakata. Furthermore, Kisakata lagoon was uplifted by dislocation during the earthquake, exposing the lagoon floor. Here, we performed a field survey of the uplift distribution based on microtopographic remnants of the former shoreline of Kisakata lagoon and used historical documents to re-evaluate tsunami trace heights. Using ocean-bottom reflection profiles, we estimated a fault model for the earthquake and resultant tsunami. Our model indicates that an average of 5.6?m of slip on the fault (equivalent to an Mw?7.1 earthquake) is required to explain the observed crustal deformation and tsunami height distributions, and back correction of the modeled slip reproduced well the former shoreline of Kisakata lagoon. |
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| 言語 | en | |||||||||||||||
| 書誌情報 |
en : Seismological Research Letters 巻 91, 号 5, p. 2674-2684, 発行日 2020-09-01 |
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| 出版者 | ||||||||||||||||
| 言語 | en | |||||||||||||||
| 出版者 | Seismological Society of America (SSA) | |||||||||||||||
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| 収録物識別子タイプ | EISSN | |||||||||||||||
| 収録物識別子 | 1938-2057 | |||||||||||||||
| DOI | ||||||||||||||||
| 関連識別子 | 10.1785/0220200074 | |||||||||||||||
