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タイトル: | Source-rupture process of the 2011 Ibaraki-oki, Japan, earthquake (M-w 7.9) estimated from the joint inversion of strong-motion and GPS Data: Relationship with seamount and Philippine Sea Plate |
著者: | Kubo, Hisahiko Asano, Kimiyuki https://orcid.org/0000-0002-8530-4198 (unconfirmed) Iwata, Tomotaka |
著者名の別形: | 久保, 久彦 浅野, 公之 岩田, 知孝 |
キーワード: | the 2011 Ibaraki-oki earthquake Source-rupture process Seamount Philippine Sea Plate |
発行日: | 28-Jun-2013 |
出版者: | John Wiley & Sons, Ltd |
誌名: | Geophysical Research Letters |
巻: | 40 |
号: | 12 |
開始ページ: | 3003 |
終了ページ: | 3007 |
抄録: | The source-rupture process of the 2011 Ibaraki-oki earthquake was estimated from the joint inversion of the strong-motion and global positioning system (GPS) data. The estimated seismic moment and maximum slip are 7.8 × 1020 Nm (Mw 7.9) and 6.3 m, respectively. The total rupture duration is approximately 30 s. The derived source model has one large slip area, which is surrounded by the subducted seamount and the northeastern edge of the Philippine Sea plate. From this model, we concluded that the rupture propagation of the 2011 Ibaraki-oki earthquake was stopped by the seamount and the Philippine Sea plate. We also showed the possibility of the rupture of this event being the reactivation of the preexisting asperity of an event that occurred in 1923. |
著作権等: | ©2013. American Geophysical Union. The full-text file will be made open to the public on 18 January 2014 in accordance with publisher's 'Terms and Conditions for Self-Archiving'. |
URI: | http://hdl.handle.net/2433/277246 |
DOI(出版社版): | 10.1002/grl.50558 |
出現コレクション: | 学術雑誌掲載論文等 |
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