摘要
加卸载响应比理论具有雄厚的物理基础 ,取太阳日照 (或磁暴 )过程作为加卸载 ,地磁垂直分量 Z为响应 ,选取了山西临汾、太原、内蒙古呼和浩特地磁台 1987年 1月至 1998年 12月的相对观测资料 ,计算出其响应比值 P(Z)的变化。发现 P(Z)异常与周围 70 0 km范围内发生的 Ms≥ 5 .5中强地震有较好的对应关系 。
Loading and unloading theory is reasonable physically. In this study, the procedure of sunshine (or magnetic storm) is taken as the loading and unloading and its response is the vertical geomagnetic component . The changes of the response ratio P(Z) is computed based on the geomagnetic data of Linfen,Taiyuan and Hohhot stations. The result shows that the precursors of P(Z) are fairly well related to the earthquakes of Ms≥5.5 within the radius of 700km. Also,how to apply this method to the earthquake prediction is discussed.
出处
《山西地震》
2001年第1期17-22,共6页
Earthquake Research in Shanxi
关键词
地震预报
地磁垂直分量
地磁活动性
加卸载
Earthquake prediction
Geomagnetic vertical component
Geomagnetic activity
Loading and unloadior
