节点文献
高淳台地磁异常与地震关系
Analysis on Geomagnetic Precursor to Earthquake at Gaochun Seismic Station
【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。
【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.
【关键词】 地磁异常;
地磁场;
加卸载响应比;
高淳台;
【Key words】 geomagnetic anomaly; geomagnetic field; loading-unloading response ratio; GaoChun seismic station;
【Key words】 geomagnetic anomaly; geomagnetic field; loading-unloading response ratio; GaoChun seismic station;
- 【文献出处】 华北地震科学 ,North China Earthquake Sciences , 编辑部邮箱 ,2011年02期
- 【分类号】P318.5
- 【被引频次】4
- 【下载频次】40