摘要
在山西省朔州井水位动态观测的原始记录图中 ,发现很多远强震前的水位慢波动现象 ,称其为井水位的“前驱波”记录 .本文介绍了典型的“前驱波”记录图象 ,初步分析了该井水位对“前驱波”的记录特征 ,发现 38%的远大强震前有这种记录 ,波动周期为数分钟至数十分钟 ,多在震前两天内出现 ;讨论了“前驱波”的成因与传播及其井水位的响应条件 ,研究了井水位“前驱波”
A lot of slow fluctuations of water level have been observed in the original recording maps of subsurface fluid in Well Shuozhou, Shanxi Province. Some typical recording maps of the 'precursors' are introduced in the paper and the features of the 'precursors' recorded by the well are analyzed. The results show that 38% strong earthquakes possess this kind of record, which has a fluctuation period arranging from several to tens of minutes and appear mostly two days before the earthquakes. Moreover, the mechanism, transmission and responding conditions of well water level are discussed, as well as the scientific meaning and practical value of the 'precursor' of the well water level in earthquake predictions.
出处
《地震学报》
CSCD
北大核心
2002年第2期210-216,共7页
Acta Seismologica Sinica
