【摘要】 应用从属函数、变差率、趋势速率等方法分析并总结了新疆及周边地区1985年以来的9次7级以上地震的流体前兆异常特征。主要特征表现为:异常时间主要集中在震前2～4年内;震前异常测项占全部测项的一半以上;随着发震时间的临近,异常项数呈现出逐渐增多—急剧增加—快速减少;异常的时空分布总体上存在着由外围向震中迁移的现象。更多还原

【Abstract】 Using subordinate function,dynamic change index and trend index,this paper summarized characteristics of fluid anomalies before earthquakes with MS7.0 in Xinjiang and adjacent region since 1985.The main features are: the anomalous time usually starting about two to four years before earthquakes;the anomaly items more than half;the anomaly items becoming more and then sharply decreased;there is an obvious phenomenon that time-space evolution of anomalies transferred from outside to epicenter.更多还原