Numerical Simulations of Large Earthquakes: Dynamic Rupture Propagation on Heterogeneous Faults

被引:0
|
作者
Ruth A. Harris
机构
[1] M.S. 977,U.S. Geological Survey
来源
pure and applied geophysics | 2004年 / 161卷
关键词
Earthquake dynamics; earthquake source physics; spontaneous rupture; fault complexity; computer simulations of earthquakes;
D O I
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中图分类号
学科分类号
摘要
— Our current conceptions of earthquake rupture dynamics, especially for large earthquakes, require knowledge of the geometry of the faults involved in the rupture, the material properties of the rocks surrounding the faults, the initial state of stress on the faults, and a constitutive formulation that determines when the faults can slip. In numerical simulations each of these factors appears to play a significant role in rupture propagation, at the kilometer length scale. Observational evidence of the earth indicates that at least the first three of the elements, geometry, material, and stress, can vary over many scale dimensions. Future research on earthquake rupture dynamics needs to consider at which length scales these features are significant in affecting rupture propagation.
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页码:2171 / 2181
页数:10
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