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通过分析、比较1996—2003年喀什地震台站记录到的新疆伽师及附近地区发生的多次6级地震的地磁前兆异常特征,发现在这几组地震活动过程中喀什地震台的地磁表现出不同的异常特征,说明与地震破裂特征有更深层次的相关性,且地磁响应比异常和总强度差值异常在一定程度上反映了台站周围小范围的震源区介质电性结构的变化。巴楚—伽师6.8级地震前地磁异常特征并不十分突出,有别于1996—1998年伽师强震群震前地磁异常量较丰富的特点。
By analyzing and comparing the features of the geomagnetic precursory anomalies recorded by the Kashi earthquake station in 1996-2003 and the M6 earthquakes in the vicinity of Jiashi, Xinjiang, it is found that the geomagnetic properties of Kashi Seismic Station during these seismogenic activities show that The different anomaly characteristics indicate that there is a deeper correlation with seismic rupture characteristics. The anomalous geomagnetic response ratio and the difference in total intensity reflect the changes of the dielectric structure in a small area around the station to a certain extent. The features of geomagnetic anomalies before the Bashi-Jiashi earthquake of magnitude 6.8 are not very prominent, which is different from the characteristics of the abundant geomagnetic anomalies before the Jiashi strong earthquake swarm from 1996 to 1998.