摘要
应用差分法分析了新沂台与射阳台地磁垂直分量Z的变化,以加卸载响应比方法研究地磁场极值的变化,对这两台资料进行相关分析,研究发现,在中强震前新沂台的地磁场存在明显的异常变化。
Using difference method, load-unload response ratio method and correlation analysis method, we analyzed the changes in the geomagnetic vertical component Z, geomagnetic extreme value and the dependence of the data from Xinyi seismic station and Sheyang seismic station. It is revealed that there is obvious anomaly in Xinyi?geomagnetic field before some moderately strong earthquakes.
出处
《地震地磁观测与研究》
2002年第5期9-13,共5页
Seismological and Geomagnetic Observation and Research
关键词
地磁场
地磁异常
相关系数
加卸载响应比
地震
差分法
Geomagnetic field,geomagnetic anomaly,correlation coefficient,load-unload response ratio Research on relation between geomagnetic anomaly at Xinyi seismic station and earthquakes Li Fei and Peng Runhe ( Xinyi Seismic Station, Jiangsu Provinc
