【摘要】 利用石河子跨断层水平向的整点值观测数据,采用动态分析方法,对2003年以来石河子周边200 km内发生的MS≥4.0地震进行了回顾性分析。发现了一些有意义的异常现象,主要异常形态有两种:一是节律性的脉冲式波动,这种异常一般持续4~10天,异常结束后5~80天发震;二是快速阶跃与平静交替,该异常一般持续5~40天,异常结束后数小时内发震。不同的异常类型可能与地震的大小、震中距的远近以及构造环境有关。更多还原

【Abstract】 We used dynamic analysis method to analyze the hour datum of level direction of cross fault,Shihezi.And we analyzed the M_S≥4.0 earthquakes around Shihezi 200 km since 2003.there have some anomalous phenomenon,but the main shape is two types,the one type is rhythm pulse wave,and the duration is 4～10 days,and 5～80 days after it,the earthquake will occur;another type is alternation between step-jump and quietude,the duration is 5～40 days,and several hours after it,the earthquakes will occur.The different anomalous types is relative to the magnitude,epicenter distance and tectonics.更多还原