Rupture process of southern Taiwan offshore M(s)7.2 earthquake of Dec. 12, 2006
| 作者: |
Guo, Z., X. Gao, and W.M. Wang |
| 期刊名称: |
Chinese Journal of Geophysics-Chinese Edition |
| 发表年度: |
2008 |
| 卷: |
51 |
| 期: |
4 |
| 联系作者: |
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| 页码: |
1103-1113 |
| 摘要: |
The rupture process of the Dec. 12, 2006(12h 26m 27sec) Taiwan earthquake (M(s)7.2 Harvard CMT) is investigated by the point source and finite fault model using upper mantle and far field broadband P wave records retrieved from TRIS and China Digital Seismic Network. The earthquake was the largest to have struck the southern Taiwan offshore in the recent century, the epicenter was situated in the collision boundary of Eurasia plate and Philippine Sea plate. The results indicate that the earthquake occurred on an east-dipping normal fault with a small amount of strike slip. The fault plane has a strike of 341.5 degrees, a dip of 77.9 degrees and the focal depth is 6 kin. We proposed that this earthquake was triggered by extensional stress induced by the break off of Eurasia plate that subducted under Philippine Sea plate.
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