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山西夏县台多项前兆异常与构造应力场对应关系探讨

Discussion on the Corresponding Relationship Between Multiple Precursory Anomalies and Tectonic Stress Field in Xiaxian Station, Shanxi Province

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【作者】 杨静李冬梅常姣荆红亮

【Author】 YANG Jing;LI Dong-mei;CHANG Jiao;JING Hong-liang;Linfen Central Seismic Station,Shanxi Earthquake Agency;National Continental Rift Valley Dynamics Observatory of Taiyuan;Shanxi Earthquake Agency;Xiaxian Central Seismic Station,Shanxi Earthquake Agency;

【通讯作者】 李冬梅;

【机构】 山西省地震局临汾中心地震台太原大陆裂谷动力学国家野外科学观测研究站山西省地震局山西省地震局夏县中心地震台

【摘要】 为探究2014年以来山西夏县台多项前兆同步异常变化的原因,从对异常测项周边观测环境做调查,与周边相邻台站资料进行对比,运用震源机制解和GPS资料得到的区域应力场结合进行综合分析等方面开展研究。结果表明,夏县台多项前兆异常变化受周边环境干扰较小,异常区域范围为山西中南部及晋陕交界区,异常变化主要由区域应力场调整所致。

【Abstract】 In order to find out the reason of several precursory synchronous abnormal changes of Xiaxian station in Shanxi Province since 2014, the research is carried out from the aspects of investigating the observation environment around the abnormal observation items, comparing with the data of neighboring stations, and comprehensively analyzing the regional stress field obtained by the focal mechanism solution and GPS data. The results show that many precursory abnormal changes in Xiaxian station are less disturbed by the surrounding environment, and the abnormal area is in the south central part of Shanxi province and Shanxi-Shaanxi border area, and the abnormal changes are mainly caused by the adjustment of regional stress field.

【基金】 震情跟踪定向工作任务(2017010505)
  • 【文献出处】 山西地震 ,Earthquake Research in Shanxi , 编辑部邮箱 ,2020年01期
  • 【分类号】P315.72
  • 【被引频次】1
  • 【下载频次】43
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