| A Research on the 2014 Wenzhou M4.2 Earthquake in the Shanxi Reservoir |
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| 作者姓名： | Zou Zhenxuan Ma Zhijiang Zhou Xinmin Zhang Fan Li Jun Li Jinlong |
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| 作者单位： | Earthquake Administration of Zhejiang Province, Hangzhou 310013, China,Earthquake Administration of Zhejiang Province, Hangzhou 310013, China,Earthquake Administration of Zhejiang Province, Hangzhou 310013, China,Earthquake Administration of Zhejiang Province, Hangzhou 310013, China,Earthquake Administration of Zhejiang Province, Hangzhou 310013, China,Earthquake Administration of Zhejiang Province, Hangzhou 310013, China |
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| 基金项目： | This research was jointly supported by the Science and Technology Project of Zhejiang Province (2012C33079) and the Youth Backbone Training Project of the Zhejiang Digital Seismic Natwork(20130207). |
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| 摘 要： | Complete records of more than 3,000 earthquake events in the Shanxi, Wenzhou reservoir earthquake sequence were recorded from August to November,2014 by the high-density,high-resolution monitoring stations of the Zhejiang Regional Digital Seismic Network and the reservoir earthquake monitoring network,with a maximum magnitude of M4. 2. Based on 3-D epicenter location, focal mechanism solutions, and in combination with the geological and tectonic characteristics of the reservoir area,the earthquake sequence is discussed in this paper. The linear fitting of the Hypo SAT location results show that the main shock occurred in the NW trending fault and the earthquake sequence is concentrated in bands along the active faults,with a strike of305 °,dipping SW with dip angle of 85 °. By using P-wave first motion symbols, we obtained the average focal mechanism of M ≥ 3. 5 earthquakes,with a strike 308 ° and dip 84 ° for nodal plane II. The field geological survey and research show that the strike,dip and rake of nodal plane II are roughly consistent with the occurrence of the Shuangxi-Jiaoxi fault. The comprehensive analysis reveals that the NW-trending Shuangxi-Jiaoxi fault is the seismogenic structure of the earthquakes.
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| 关 键 词： | Reservoir earthquake Monitoring network The fault structure The focal mechanism solution |
| 收稿时间： | 2015/4/19 0:00:00 |
| 修稿时间： | 2016/9/9 0:00:00 |
A Research on the 2014 Wenzhou M4.2 Earthquake in the Shanxi Reservoir |
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| Zou Zhenxuan,Ma Zhijiang,Zhou Xinmin,Zhang Fan,Li Jun,Li Jinlong.A Research on the 2014 Wenzhou M4.2 Earthquake in the Shanxi Reservoir[J].Earthquake Research in China,2017,31(4):455-462. |
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| Authors: | Zou Zhenxuan Ma Zhijiang Zhou Xinmin Zhang Fan Li Jun and Li Jinlong |
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| Institution: | Earthquake Administration of Zhejiang Province, Hangzhou 310013, China,Earthquake Administration of Zhejiang Province, Hangzhou 310013, China,Earthquake Administration of Zhejiang Province, Hangzhou 310013, China,Earthquake Administration of Zhejiang Province, Hangzhou 310013, China,Earthquake Administration of Zhejiang Province, Hangzhou 310013, China and Earthquake Administration of Zhejiang Province, Hangzhou 310013, China |
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| Abstract: | |
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| Keywords: | Reservoir earthquake Monitoring network The fault structure The focal mechanism solution |
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