Several Hundred Finite Element Analyses of an Inversion of Earthquake Fault Slip Distribution using a High-fidelity Model of the Crustal Structure | Zendy

Ryoichiro Agata | Zendy; Tsuyoshi Ichimura | Zendy; Kazuro Hirahara | Zendy; Mamoru Hyodo | Zendy; Takane Hori | Zendy; Muneo Hori | Zendy

Open Access

Several Hundred Finite Element Analyses of an Inversion of Earthquake Fault Slip Distribution using a High-fidelity Model of the Crustal Structure

Author(s) -

Ryoichiro Agata,

Tsuyoshi Ichimura,

Kazuro Hirahara,

Mamoru Hyodo,

Takane Hori,

Muneo Hori

Publication year - 2014

Publication title -

procedia computer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.334

H-Index - 76

ISSN - 1877-0509

DOI - 10.1016/j.procs.2014.05.079

Subject(s) - finite element method , computer science , slip (aerodynamics) , high fidelity , earthquake simulation , inverse theory , inversion (geology) , inverse problem , seismology , algorithm , inverse , high resolution , geology , structural engineering , geometry , mathematical analysis , mathematics , remote sensing , telecommunications , tectonics , electrical engineering , surface wave , engineering , physics , thermodynamics

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

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