宁蒗6.2姚安6.5和永胜6.0级地震前地下流体的短期变化

The Short-term Variation of the Underground Fluid before M6.2 Ninglang Earthquake,M6.5 Yao'an E arthquake and M6.0 Yongsheng Earthquake

在系统整理云南地区地下流体观测资料的基础上 ,对云南宁蒗 6 2级地震、姚安 6 5级地震及永胜6 0级地震前的地下流体短期异常分布范围、数量、形态、幅度及异常与发震时间关系等特征进行了分析和总结 ,这对未来强震前兆的识别和分析有一定的实用价值。

On the basis of the systematic research on the observational data of underground fluid in Yunnan area, the features of short-term anomaly of the underground flu id appeared beore M6 2 Ninglang Earthquake,M6 5 yao'an Earthquake and M6 0 Yonsheng Earthquak e (including the range of anomaly distribution, the number of anomaly, the form of the anomaly, etc.) are analyzed and summarized. The relationship between the anomaly and the occurrence time of the strong earthquakes is discussed too. In this way, a practical method to the task of discrimination and analysis of the f uture anomalies of the strong earthquakes is put forward.