| 玉树Ms7.1地震前地电场异常变化特征分析 |
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| 引用本文： | 张小涛,陈化然,马新欣,刘晓灿,姚丽,袁亚红.玉树Ms7.1地震前地电场异常变化特征分析[J].大地测量与地球动力学,2011,31(Z1):38-42. |
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| 作者姓名： | 张小涛 陈化然 马新欣 刘晓灿 姚丽 袁亚红 |
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| 作者单位： | 河北省地震局邯郸中心台;中国地震局地球物理研究所; |
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| 基金项目： | 中央级公益性科研院所基本科研业务专项:华北地区电磁场动态演化特征研究 |
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| 摘 要： | 对玉树地震周围台站电场资料,在消除来自空间的各种辐射和各种高频突变干扰后,利用电场矢量方位角和振幅的时间序列与空间动态演化特征,讨论了玉树地震前电场异常变化特征,研究结果表明:玉树地震前4-35天成都、天水、拉萨、汉王、都兰、甘孜6个台站都出现了异常,而且异常出现的时间同步性较好,震前的7±3天之内有5个台站同步出现突...
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| 关 键 词： | 地电场 玉树7.1级地震 断裂带 动态演化 机理 |
PRELIMINARY ANALYSIS OF CHARACTERISTICS OF ANOMALOUS VARIATION OF GEOELECTRIC FIELD BEFORE YUSHU Ms7.1 EARTHQUAKE |
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| Zhang Xiaotao,Chen Huaran,Ma Xinxin,Liu Xiaocan,Yao Li,Yuan Yahong.PRELIMINARY ANALYSIS OF CHARACTERISTICS OF ANOMALOUS VARIATION OF GEOELECTRIC FIELD BEFORE YUSHU Ms7.1 EARTHQUAKE[J].Journal of Geodesy and Geodynamics,2011,31(Z1):38-42. |
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| Authors: | Zhang Xiaotao Chen Huaran Ma Xinxin Liu Xiaocan Yao Li Yuan Yahong |
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| Institution: | Zhang Xiaotao{1)},Chen Huaran{2)},Ma Xinxin{2)},Liu Xiaocan{2)},Yao Li{2)} and Yuan Yahong{2)}1)Central Seismostation of Handan,Handan 0560012)Institute of Geophysics,China Earthquake Administration,Beijing 100081 |
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| Abstract: | Through analysis and research on the telluric electric field data around the Yushu earthquake,the anomalous characteristics of the telluric electric field vector are extracted by the use of time series and spatial dynamic evolution of the telluric electric field vector azimuth and amplitude,in which some variation caused by the solar activity,such as radiation,particle wind and so on and the high-frequency abrupt disturbances are eliminated.We preliminarily studied the characteristics of the anomalous varia... |
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| Keywords: | telluric electric field YushuMs7 1 earthquake fault zone dynamic evolution mechanism |
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