甘肃礼县盐关井水位短临异常与滇北强震的关系

在分析了甘肃礼县盐关井水位20多年来的异常变化与邻近地区发生中强地震的对应关系基础上,着重就18年来井水位出现两次较大幅度的负异常与相距1000 km多的云南禄劝1985年6.1级地震和云南大姚2003年6.2级地震的对应关系进行了探讨,认为该井很可能是滇北两个震区强震的“穴位”和灵敏点。

Relationship between the Short-term Anomalies of Underground Water Level in Yanguan Well, Lixian County, Gansu Province,and Earthquakes Occurred in Northern Yunnan Province

Based on the analysis of corresponding relationship between the abnormal variation of underground water level of Yanguan well in Lixian County,Gansu province,in more than 20 years and moderate-strong earthquakes occured in the near area,this paper especially focus on the corresponding relationship between two main negative anomalies in the water level during 18 years and two earthquakes more than 1 000 km far in Yuannan province(Luquan M6.1 earthquake in 1985,Dayao M6.2 earthquake in 2003).It is considered that the Yanguan well is most possible sensitive spot for strong earthquake in north area of Yunnan province.