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陕西高陵4.4级地震期间形变异常分析
引用本文:柯昌安,李正嫒,窦玛丽.陕西高陵4.4级地震期间形变异常分析[J].高原地震,2013(4):1-9.
作者姓名:柯昌安  李正嫒  窦玛丽
作者单位:[1]陕西省地震局,陕西西安710068 [2]中国地震台网中心,北京100045
基金项目:国家质检公益性行业科研专项(10-215);地震公益性行业科研专项(200808033).
摘    要:2009年11月5日,陕西省高陵县发生了Ms4.4级地震,震前1周陕西形变资料出现多台项的短临异常。对异常特征和震源机制展开分析,结果显示:①异常幅度与震中距成反比;②异常方向和台项分布与震源机制相吻合。

关 键 词:高陵地震  形变资料  短临异常  震源机制

ANALYSIS ON DEFORMATION ANOMALIES DURING GAOLING Ms 4. 4 EARTHQUAKE IN SHAANXI PROVINCE
KE Chang' an,LI Zhengyuan,DOU Mali.ANALYSIS ON DEFORMATION ANOMALIES DURING GAOLING Ms 4. 4 EARTHQUAKE IN SHAANXI PROVINCE[J].Plateau Earthquake Research,2013(4):1-9.
Authors:KE Chang' an  LI Zhengyuan  DOU Mali
Institution:1. Earthquake Administration of Shaanxi Province, Xi' an 710068, China ; 2. China Earthquake Networks Center, CEA, Beijing 100036, China)
Abstract:Gaoling Ms4. 4 earthquake occurred on Nov. 5th, 2009 in Shaanxi province. Some short-term a- nomalies of deformation data appeared before one week in Shaanxi seismic stations. In this paper, the anomaly characteristics and focal mechanism are analyzed , the results show that: ① Anomaly amplitude is inversely proportional to epicentral distance ;② Abnormal of direction and stations distribution are consistent with the focal mechanism of the event.
Keywords:Gaoling earthquake  Deformation data  Short-term anomalies  Focal mechanism
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