Comprehensive studies for the 2011 off the Pacific coast of Tohoku earthquake

2011年东北太平洋沿岸地震综合研究

• 批准号: 22900002
• 负责人: SHINOHARA Masanao
• 金额: --
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 无数据
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22900002/
• 关键词: 東北地方太平洋沖地震; 海底地震観測; 陸上臨時観測; 海底地殻変動; マルチチャンネル反射法; 強震動; 津波; 構造物等被害

The 2011 off the Pacific coast of Tohoku earthquake occurred offshore of northeast Japan region on March 11, 2011, and large ground motion with long duration and huge tsunami damaged human society. To clarify the generation mechanism of this large earthquake, we carried out various observations. Seismic observations in marine and land areas revealed variation of seismic activities in time and space. Geometry of the source was estimated by seismic surveys and ocean bottom crustal movement measurements. In addition, the slip distribution during the mainshock was obtained using various geophysical datasets. Field surveys revealed tsunamis and the generation process of the tsunamis was estimated. Damage of constructions was also clarified and useful information for disaster mitigation in future was obtained.

2011年3月11日，太平洋沿岸的东北地震发生在日本东北地区近海，持续时间长、强度大的地震动和巨大的海啸对人类社会造成了破坏。为了弄清这次大地震的发生机制，我们进行了各种观测。海洋和陆地地震观测揭示了地震活动在时间和空间上的变化。震源的几何形状是通过地震调查和海底地壳运动测量来估计的。此外，利用不同的地球物理资料获得了主震期间的滑动分布。实地调查发现了海啸，并对海啸的发生过程进行了估计。澄清了建筑物的损害，为今后的减灾工作提供了有用的信息。

项目成果

巨大地震・巨大津波-東日本大震災の検証-

特大地震和特大海啸 - 东日本大地震的考察 -

• 发表时间: 2012
• 作者: Satomura;T.;平田直・佐竹健治・目黒公郎・畑村洋太郎
• 通讯作者: 平田直・佐竹健治・目黒公郎・畑村洋太郎

Near-field tsunami forecasting using offshore tsunami data from the 2011 off the Pacific coast of Tohoku Earthquake

• DOI: 10.5047/eps.2011.06.052
• 发表时间: 2011-09
• 期刊: Earth, Planets and Space
• 作者: H. Tsushima;K. Hirata;Y. Hayashi;Y. Tanioka;K. Kimura;S. Sakai;M. Shinohara;T. Kanazawa;R. Hino;K. Maeda

宮城県沖における海底地震・測地観測網が捉えた2011年東北地方太平洋沖地震

宫城县近海海底地震大地观测网捕获的2011年东北太平洋沿岸地震

• 发表时间: 2011
• 作者: Satake;K.;篠原雅尚;野徹雄;野徹雄;佐々木基成;日野亮太
• 通讯作者: 日野亮太

Shallow inland earthquakes in NE Japan possibly triggered by the 2011 off the Pacific coast of Tohoku Earthquake

• DOI: 10.5047/eps.2011.06.027
• 发表时间: 2011-09
• 期刊: Earth, Planets and Space
• 作者: T. Okada;Keisuke Yoshida;S. Ueki;J. Nakajima;N. Uchida;T. Matsuzawa;N. Umino;A. Hasegawa;G. F. T. A. O. O. T. 2. N. Earthquake-G.-F.-T.-A.-O.-O.-T.-2.-N.-Earthquake-1419904874

The 2011 Tohoku-Oki Earthquake: Displacement Reaching the Trench Axis

• DOI: 10.1126/science.1211554
• 发表时间: 2011-12-02
• 期刊: SCIENCE
• 影响因子: 56.9
• 作者: Fujiwara, Toshiya;Kodaira, Shuichi;Kaneda, Yoshiyuki
• 通讯作者: Kaneda, Yoshiyuki