【摘要】 根据加卸载响应比理论,对福建省5个水位观测资料进行加卸载响应比计算,发现在多次福建4级地震前出现多井同步异常,在形态上表现为高值突跳,时间上表现为短期或短临异常,空间上与地震所处的构造部位有关。说明地震前近源区含水层系统确实处于临近失稳状态,水位固体潮加卸载响应比可能捕捉到4级以上地震前应力失稳的过程。更多还原

【Abstract】 According to the theory of loading /unloading response ratio,the earth tidal loading /unloading response ratio of underground water level data from five water-wells was calculated in Fujian Province. It showed that the abnormal phenomenon of several water- wells appeared before M L4. 0earthquakes in Fujian Province,which reflected the shape above the average value,short-impeding anomalies and seismic tectonic position related. It concluded that near source rock aquifer system is in a near instable state before the earthquake,and the earth tidal loading / unloading response ratio may get the stress instability process before M L4. 0 earthquake.更多还原