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Northeastern Taiwan seismicity and focal mechanisms
Northeastern Taiwan seismicity and focal mechanisms
The northeastern region of Taiwan is one of the few places on Earth that experienced a transition from collision to subduction and back-arc opening in a young orogenic belt. To study the structural characteristics in such a transition, the ML≥3 earthquakes since 1994 to 2005 in the region are relocated, and the focal mechanisms of the events with ML≥4 are determined for kinematic stress analysis.
Figure: The distribution of the epicenter shifts (blue bar) before and after relocation (left), relocated epicenters (middle), and determined focal mechanisms (right). Thrust, strike-slip, and normal fault types are categorized by the rake (thrust, 45° to 135°; normal, 45° to 135°; strike-slip, others) and denoted by red, green, and blue, respectively
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Citation
Huang, H.-H., J. B. H. Shyu*, Y.-M. Wu, C.-H. Chang, and Y.-G. Chen (2012), Seismotectonics of northeastern Taiwan: Structural characteristics of a transitional area from wanning collision to subduction and post-collisional extension, J. Geophys. Res., 117, B01313, doi:10.1029/2011JB008852
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