3D Lithosphere Structural Model Analysis of 2011 Mw 9.0 Tohoku-Oki Earthquake, Japan
详细信息
- 责任者：Yan Bing (Institute of Energy Sciences ; School of Earth Sciences and Engineering ; Nanjing University ; Nanjing 210093 ; China) ; Jia Dong
- 刊名：Geological Journal of China Universities
- 出版年：2012
- 卷期：18(4)
- 关键词：大震 ; great earthquakes ; 岩石圈 ; lithosphere ; 日本 ; Japan
- 页码：p.676-685
- 图表：4 illus., 39 refs.
- 分类号：0500
- issnNo：ISSN1006-7493
- isbnNo：CN32-1440/P
摘要
On 11 March, 2011, there was a Mw 9.0 great earthquake occurred off the coastline of Tohoku, northeastern Japan. In this paper, a 3D lithosphere structural model of Japan Trench based on 8 lithosphere structural sections has been constructed. The authors discussed the geometry, including the bending point and the bending axis, of the subdution zone beneath Japan Trench based on the 3D model. The authors also analyzed the distribution of hypocenters of paleo-earthquakes and the main and after shocks of the Mw 9.0 Tohoku-Oki Earthquake. The seismicity in northeastern Japan is closely related to the subduction of the Pacific Plate beneath Japan Trench.