Numerical simulation of co-seismic deformation of 2011 Japan Mw9.0 earthquake

被引:0
|
作者
Zhang Keliang and Ma Jin Institute of Geology
机构
基金
中国国家自然科学基金;
关键词
Japan Mw9.0 earthquake; co-seismic displacement; GPS; dislocation model; subduction zone;
D O I
暂无
中图分类号
P315 [地震学];
学科分类号
070801 ;
摘要
Co-seismic displacements associated with the Mw9.0 earthquake on March 11, 2011 in Japan are numerically simulated on the basis of a finite-fault dislocation model with PSGRN/PSCMP software. Compared with the inland GPS observation, 90% of the computed eastward, northward and vertical displacements have residuals less than 0.10 m, suggesting that the simulated results can be, to certain extent, used to demonstrate the co-seismic deformation in the near field. In this model, the maximum eastward displacement increases from 6 m along the coast to 30 m near the epicenter, where the maximum southward displacement is 13 m. The three-dimensional display shows that the vertical displacement reaches a maximum uplift of 14.3 m, which is comparable to the tsunami height in the near-trench region. The maximum subsidence is 5.3 m.
引用
收藏
页码:16 / 23
页数:8
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