摘要
将加卸载响应比的理论应用于地磁方法中。取太阳日照为加载，地磁垂直分量Ｚ为响应，应用马陵山地震台１９９３年１月～１９９５年１１月相对观测资料计算其响应比值。得出结果：响应比的变化在１９９５年９月２０日苍山５．２级地震前有明显异常显示。分析认为，这一异常变化是苍山地震的前兆异常。
The theory of load-unload response ratio is applied to geomagnetic observation. The sunshine is taken as the load, the geomagnetic vertical component, Z, as the response here. Relative observation data at Malingshan Seismic Station in the period of 1993. 1￣1995. 11 are applied to calulate response ratio. The author discovered that the change of response ratio is obvious before Ms 5. 2 earthquake, on september 20, 1995 in Cangshan. It is precursory anomaly before Cangshan earthquake.
出处
《地震地磁观测与研究》
1996年第5期61-63,共3页
Seismological and Geomagnetic Observation and Research
关键词
地磁异常
加卸载响应比
地震前兆
geomagnetic vertical component
geomagnetic anomaly
load-unload response ratio
