| 2002年新疆乌恰5.7级地震前地震活动异常分析 |
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| 引用本文： | 潘振生,刘辉,徐向宏,祝军.2002年新疆乌恰5.7级地震前地震活动异常分析[J].地震地磁观测与研究,2005,26(5):46-51. |
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| 作者姓名： | 潘振生 刘辉 徐向宏 祝军 |
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| 作者单位： | 中国,新疆维吾尔自治区,843000,阿克苏中心地震台 |
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| 摘 要： | 分析了乌恰5．7级地震前喀什-乌恰地区的地震活动情况和地震学参数异常过程。研究认为，5．7级地震发生在1996年9月以来形成的喀什西南4．0级以上地震空区的边缘，此次地震的活动间隔时间为1980年以来之最；震前有6项地震学参数空间扫描和5项地震学参数时间进程存在中短期异常；震前3级地震活动强度有多次起伏。
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| 关 键 词： | 异常特征 时空扫描 乌恰地震 |
| 文章编号： | 1003-3246（2005）05-0046-06 |
| 收稿时间： | 2005-01-27 |
| 修稿时间： | 2005年1月27日 |
Analysis of the seismicity anomalies before Wuqia Ms 5.7 earthquake in Xinjiang Uygur Autonomous Region |
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| Pan Zhensheng,Liu Hui,Xu Xianghong,Zhu Jun.Analysis of the seismicity anomalies before Wuqia Ms 5.7 earthquake in Xinjiang Uygur Autonomous Region[J].Seismological and Geomagnetic Observation and Research,2005,26(5):46-51. |
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| Authors: | Pan Zhensheng Liu Hui Xu Xianghong Zhu Jun |
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| Institution: | Akesu Seismic Station, Xinjiang Uygur Autonomous Region 843000, China |
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| Abstract: | The anomaly process of the seismicity and seismological parameter in the Kashi-Wuqia area before the Wuqia earthquake with Ms 5.7 occurred on 25 Dec. 2002 have been analyzed. The earthquake occurred on empty segment of Ms 4.0 earthquake in the Westsouth Kashi since Sep 1996. It had the longest seismic time gap after 1980. It had medium-term or short-term anomalies before the earthquake, such as seismicity on spatial scan and 5 items of seismicity in temporal process. The activity strength of Ms 3.0 earthquake have several changes before the earthquake. |
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| Keywords: | anomalous characteristics temporal and spatial scan Wuqia earthquake |
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