Several hundred finite element analyses of an inversion of earthquake fault slip distribution using a high-fidelity model of the crustal structure

被引：3

作者：

Agata, Ryoichiro ^{[1
]}

Ichimura, Tsuyoshi ^{[1
]}

Hirahara, Kazuro ^{[2
]}

Hyodo, Mamoru ^{[3
]}

Hori, Takane ^{[3
]}

Hori, Muneo ^{[1
]}

机构：

[1] Univ Tokyo, Tokyo, Japan

[2] Kyoto Univ, Kyoto, Japan

[3] Japan Agcy Marine Earth Sci & Technol, Yokohama, Kanagawa, Japan

来源：

2014 INTERNATIONAL CONFERENCE ON COMPUTATIONAL SCIENCE | 2014年 / 29卷

关键词：

finite element analysis; crustal deformation; inversion of earthquake fault slip; capacity computing;

D O I：

10.1016/j.procs.2014.05.079

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

To improve the accuracy of inverse analysis of earthquake fault slip distribution, we performed several hundred analyses using a 108-degree-of-freedom finite element (FE) model of the crustal structure in an efficient way based on capacity computing. we developed a meshing method and an efficient computational method for these large FE models, which methods are specialized for the problem setting. We applied the model to the inverse analysis of coseismic fault slip distribution for the 2011 Tohoku-oki Earthquake. The high resolution of our model provided a significant improvement of the fidelity of the simulation results compared to existing computational approaches.

引用

页码：877 / 887

页数：11

共 18 条

[1]

[Anonymous], 2003, ITERATIVE METHODS SP, DOI DOI 10.1137/1.9780898718003

[2] Geodetic imaging of coseismic slip and postseismic afterslip: Sparsity promoting methods applied to the great Tohoku earthquake [J].