摘要
应用微动态异常频次、M2波振幅比等方法,对巢湖14#井水位1987~1997年进行了全过程的分析研究。研究结果表明:在华东几次中强震前,该井水位的微动态异常频次在地震前3~4个月有明显增高的异常显示,而水位M2波振幅比在地震前也存在3~4个月的下降异常。由此可以认为该井有可能成为华东及东部沿海5级以上地震的灵敏井点之一,而且在地震的短期预测方面可能会提供有益的异常信息。
All processes of 1987~1997 water level of Chao lake No 14 well are analyzed and studied using the methods such as anomalous frequence of the level microdynamic and M 2 wave amplitude ratio It is concluded that the anomalous frequence of the well microdynamic obviously increased and M 2 wave amplitude ratio decreased in 3~4 months before several moderate earthquakes of east China It is possible that the well is one of sensitive wells to M S≥5 0 earthquakes of east China and coast area
出处
《地震学刊》
CSCD
1998年第4期14-18,共5页
Journal of Seismology