| 张北震前北杜井水位异常分析 |
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| 引用本文： | 苗菊玲,张双凤,董书香.张北震前北杜井水位异常分析[J].华北地震科学,2004,22(3):25-27. |
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| 作者姓名： | 苗菊玲 张双凤 董书香 |
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| 作者单位： | 河北省地震局邯郸地震中心台,河北,邯郸,056001;河北省地震局,河北,石家庄,050021 |
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| 摘 要： | 对北杜井水位异常动态变化特征进行了分析研究，表明在张北6．2级地震前，水位有“上升—下降—地震”的异常现象。利用“十五”攻关刘喜兰等改进的从属函数方法进行计算，也表明水位有从属函数异常，在异常开始后第9个月发生张北地震。无论是定性分析、还是定量计算，都显示张北地震前北杜井水位有明显的中期异常变化，说明北杜井水位对华北地区发生的强震有一定监视能力。
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| 关 键 词： | 水位 从属函数 中期异常 强震 |
| 文章编号： | 1003-1375(2004)03-0025-03 |
| 修稿时间： | 2003年7月10日 |
Study on the anomaly of groundwater level in Beidu well before Zhangbei earthquake |
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| MIAO Ju-ling,ZHANG Shuang-feng,DONG Shu-Xiang.Study on the anomaly of groundwater level in Beidu well before Zhangbei earthquake[J].North China Earthquake Sciences,2004,22(3):25-27. |
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| Authors: | MIAO Ju-ling ZHANG Shuang-feng DONG Shu-Xiang |
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| Institution: | MIAO Ju-ling~1,ZHANG Shuang-feng~1,DONG Shu-Xiang~2 |
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| Abstract: | The research to the variation of groundwater level in Beidu well shows that there was a rising-descending anomaly in the water level before Zhangbei Ms6.2 earthquake. Processed with secondary function, the data is also showed an anomaly. Zhangbei earthquake happened 9 months after the appearance of the anomaly. Thus we concluded that the well has some monitoring capacity for the earthquakes in North China. |
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| Keywords: | water level secondary function medium term anomaly strong earthquake |
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