| 高淳台地磁异常与地震关系 |
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| 引用本文： | 夏孝田.高淳台地磁异常与地震关系[J].华北地震科学,2011,29(2):49-52. |
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| 作者姓名： | 夏孝田 |
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| 作者单位： | 江苏省高淳县地震台,江苏,高淳,211300 |
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| 摘 要： | 应用差分法分析了高淳台、溧阳台、高邮台、连云港台、宿迁台、海安台地磁垂直分量Z的变化,以加卸载响应比方法研究地磁极值的变化,用Z极小值时间进行地磁低点位移分析,对这些台站资料进行相关分析,研究发现中强震前高淳台的地磁场存在明显的异常变化.
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| 关 键 词： | 地磁异常 地磁场 加卸载响应比 高淳台 |
Analysis on Geomagnetic Precursor to Earthquake at Gaochun Seismic Station |
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| XIA Xiao-tian.Analysis on Geomagnetic Precursor to Earthquake at Gaochun Seismic Station[J].North China Earthquake Sciences,2011,29(2):49-52. |
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| Authors: | XIA Xiao-tian |
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| Institution: | XIA Xiao-tian(Gaochun Seismic Station of Jiangsu Province,Gaochun 211300) |
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| Abstract: | The geomagnetic Z-component observation data from the Gaochun,Liyang,Gaoyou,Lianyungang,Suqian and Haian seismic station are analyzed using finite difference method.Then,the extremal value of the observation data is studied using the method of loading-unloading response ratio.The geomagnetic low-point displacement is also analyzed using minimum value time of the geomagnetic Z-component.The result shows that geomagnetic filed at Gaochun seismic station changes obviously before moderate-strong earthquake. |
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| Keywords: | geomagnetic anomaly geomagnetic field loading-unloading response ratio GaoChun seismic station |
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