观测地下水氡浓度的变化,是预报地震的一种方法,特别是对一定区域内的地震活动,有较好的对应关系。而对水氡观测资料进行一定的数学处理,尽可能排除非地震因素的干扰,从变化的观测资料中提取真正的地震信息,是取得较好预报效果的关键。 根据浦沅井孔特定的水文地质条件,我们对浦沅水氡资料进行了分段处理。所得结果对附近小震活动,异常显示较明显。 Observing the variation of radon concentration in groundwater is a method of forecasting earthquakes, especially for the seismic activity in a certain area. However, some mathematical treatment of water radon observation data to exclude non-seismic interference as much as possible and extract the real seismic information from the observed data is the key to better forecasting results. According to the specific hydrogeological conditions of Puyuan well borehole, we conducted a sub-treatment of the radon data of Puyuan water. The results of the activities of small earthquakes nearby, more obvious anomalies.