吴鹏, 张小涛, 张磊. 用CAP方法研究2016年6月23日河北尚义MS4.0地震震源机制[J]. 华北地震科学, 2016, 34(3): 48-52. DOI: 10.3969/j.issn.1003-1375.2016.03.009
引用本文: 吴鹏, 张小涛, 张磊. 用CAP方法研究2016年6月23日河北尚义MS4.0地震震源机制[J]. 华北地震科学, 2016, 34(3): 48-52. DOI: 10.3969/j.issn.1003-1375.2016.03.009
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WU Peng, ZHANG Xiao-tao, ZHANG Lei. Focal Mechanism of Hebei Shangyi MS4.0 Earthquake on June 23, 2016 by CAP Method[J]. North China Earthquake Sciences, 2016, 34(3): 48-52. DOI: 10.3969/j.issn.1003-1375.2016.03.009
Citation: WU Peng, ZHANG Xiao-tao, ZHANG Lei. Focal Mechanism of Hebei Shangyi MS4.0 Earthquake on June 23, 2016 by CAP Method[J]. North China Earthquake Sciences, 2016, 34(3): 48-52. DOI: 10.3969/j.issn.1003-1375.2016.03.009
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用CAP方法研究2016年6月23日河北尚义MS4.0地震震源机制

Focal Mechanism of Hebei Shangyi MS4.0 Earthquake on June 23, 2016 by CAP Method

    摘要
  • 摘要: 利用晋冀蒙危险区临时虚拟台网的宽频带数字化观测资料，采用CAP（Cut and Paste）方法计算得到2016年6月23日河北尚义地震的震源机制解。节面Ⅰ：走向247°、倾角62°、滑动角-32°；节面Ⅱ：走向353°、倾角62°、滑动角-147°，震源深度8 km，震级MW3.93。结合地质构造隐伏断层推断，该地震可能是NNE向的大满-前黑沙土隐伏断裂构造引起的，发震断层性质为左旋、走滑兼有正断分量。

     

    Abstract: In this paper, we calculate the focal mechanism of Shangyi earthquake using the CAP method on basis of data from Jin-ji-meng network. The result is 247°,62° and -32° for strike, dip angle and slip angle, with the other nodal plane of 353°,62ånd -147°, the focal depth is 8 km, and MW=3.93. It is considered that Daman-Qianheitu buried fault is the earthquake generating fault of Shangyi earthquake, and the fault is of the left lateral strike slip type with normal component.

     

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