| Original Articles |
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A Procedure for Modeling Shallow Dislocation Sources with
Tensional Component |
| HE Yu-Mei;WANG Wei-Min;YAO Zhen-Xing |
| Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100101
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| Cite this article: |
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HE Yu-Mei, WANG Wei-Min, YAO Zhen-Xing 2002 Chin. Phys. Lett. 19 441-444 |
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Abstract The source terms of a tensile dislocation are presented in terms of the wave number and circular frequency. Expressions for displacements on the surface of a half-space due to an arbitrary oriented dislocation are also obtained by using the generalized ray method. The result shows that the far-field waveforms contributed by tensile source are different from other sources. Considering that not all large earthquakes can be explained with the shear dislocation model, these expressions may be efficient in analysing some earthquakes.
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91.30.Bi
04.30.Db
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Published: 01 March 2002
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| PACS: |
91.30.Bi
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(Seismic sources (mechanisms, magnitude, moment frequency spectrum))
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04.30.Db
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(Wave generation and sources)
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