华安汰内井水氡对闽台地震的映震特征差异性分析

通过华安汰内井水氡对1987年以来福建地区M_L4.5以上地震、 台湾地区M_S7.0以上地震的映震特征分析, 认为该井水氡对福建和台湾地区地震的映震特征具有一定的差异性, 其差异性表现为对福建地区的地震, 其异常特征一般表现为突跳及振荡, 且异常多发生在震前20天左右, 同时异常持续的时间也较短; 对台湾地区的地震, 其异常特征表现为高值异常且异常持续时间长, 异常多发生在震前11个月左右。 据此可以在华安汰内井水氡发生异常时对未来的发震地点做出较为准确的判断。

Analysis on the Difference of Reflecting Characteristics of Hydro-radon in Huaan-Tainei Well to Earthquakes in Fujian and Taiwan Region

Based on the analysis of earthquake-reflecting characteristics of hydro-radon in Huaan Tainei well to M_L>4.5 earthquakes in Fujian and M_S>7.0 earthquakes in Taiwan region since 1987, we found that anomalies to earthquakes happened in Fujian are characterized by general sudden jump and oscillation, and seismic precursors mostly occurred in about 20 days before earthquakes, while the duration of anomalies are also shorter. Anomalies to earthquakes happened in Taiwan are characterized by high-value and long duration, and seismic precursors mostly occurred 11 months before earthquakes.We can make more accurate judgments of earthquake locations in the future basd on abnormalies from hydro-Radon in Huaan Tainei well.