| 岷县5.2级地震前兆异常分析 |
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| 引用本文： | 徐辉,白亚平,康庆强,姚军,燕明芝.岷县5.2级地震前兆异常分析[J].高原地震,2007,19(3):25-28. |
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| 作者姓名： | 徐辉 白亚平 康庆强 姚军 燕明芝 |
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| 作者单位： | 中国地震局兰州地震研究所,甘肃,兰州,730000 |
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| 摘 要： | 用兰州、天水、通渭、武都4台站地电数字化资料观测结果，对2003年11月13日在岷县发生的Ms5．2级地震进行分析，其结果表明，在该地震发生前地电前兆出现了多项短临异常，这些短临异常特征明显，从异常开始至结束，展现为时间短、幅度大、恢复快这一特点。可为地震短临预报提供重要的参考依据。
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| 关 键 词： | 地电前兆 数字化观测 电阻率 自然电位 异常特征 |
| 文章编号： | 1005-586X（2007）03-0025-04 |
| 修稿时间： | 2007-07-20 |
ANALYSIS ON THE PRECURSORY ANOMALIES BEFORE MINXIAN 5.2 EARTHQUAKE |
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| XU Hui,BAI Ya-ping,KANG Qing-qiang,YAO Jun,YAN Ming-zhi.ANALYSIS ON THE PRECURSORY ANOMALIES BEFORE MINXIAN 5.2 EARTHQUAKE[J].Plateau Earthquake Research,2007,19(3):25-28. |
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| Authors: | XU Hui BAI Ya-ping KANG Qing-qiang YAO Jun YAN Ming-zhi |
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| Institution: | Lanzhou Institute of Seismology, CEA, Lanzhou 73000, China |
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| Abstract: | Used digital observation data of geo-resistivity from Lanzhou,Tianshui,Tongwei and Wudu 4 stations,we analyze Minxian Ms 5.2 earthquake on Nov.13,2003.The results show that there are multiple short-term and impending precrusory anomalies before the earthquake.The characteristics of short-term and impending anomalies are obvious which display less time,sigificant extent and rapid recovery from the beginning to the end.These characteristics can contribute to the short-term and imminent earthquake predition. |
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| Keywords: | Geo-resisitivity precursor Digital observation Resistivity Spontaneous potential Abnormal characteristics |
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