摘要
对山西朔州井与静乐井水位前驱波与气压、风、降雨及强震关系进行定量、半定量统计分析的结果表明,前驱波引起的井水位变幅与气压引起的井水位的水位变幅不一致,前驱波的周期与气压、风、降雨周期不匹配,出现的时间不同步,形态差异也很大,与短时间集中降雨也无明显的对应关系。前驱波与强震之间存在较好的对应关系,对应率在50%左右。井水位前驱波现象不是气压、风、降雨等干扰因素的短期突变所造成的,可能反映了大震前震源内部信息。
The quantitative or semi-quantitative analysis of relation between the pre-waves, occurred on water level of wells at Shuozhou and Jingle wells, Shanxi, and air pressure, wind, rainfall as well as strong earthquakes is made. The results show that the amplitude variation caused by pre-wave is not coincident with one by air pressure; pre-wave is not matched with ones of air pressure, wind and rainfall, bei the period of the ng of different occurrence time and shape among them; there is no obvious correlation with heavy rainfall in a short time. On the other hand, the pre-waves correlated with the strong earthquakes in some degree, with coincidence around 50%o. A pre-wave phenomenon on water level of well may correspond to some information from the interior seismic source before a strong earthquake rather than be caused by short-term sudden change of some noise factors such as air pressure, wind, rainfall etc.
出处
《地震》
CSCD
北大核心
2005年第3期69-77,共9页
Earthquake
基金
地震科学联合基金资助项目(103018)
关键词
前驱波
气压
风
降雨
强震
Pre-wave
Air pressure
Wind
Rainfall
Strong earthquake
