深井水位气压效率和相关系数在中强地震前的变化特征  

THE CHARACTERISTICS OF ANOMALOUS VARIATIONS ON BAROMETRIC PRESSURE EFFICIENCY AND INTERRELATION COEFFICIENT OF GROUNDWATER LEVEL IN DEEP WELLS BEFORE MODERATE AND STONG EARTHQUAKES

作　　者：耿杰[1] 周斌 张昭栋[1] 

机构地区：[1]山东省地震局,山东济南250014 [2]东营市地震局,山东东营257000

出　　处：《西北地震学报》2002年第3期257-261,共5页Northwestern Seismological Journal

摘　　要：采用高阶差分求深井水位的气压效率和相关系数的方法并优选最佳相关结果 ,获得了 5口井在两次中强地震前二者的变化 .认为从这一方法中提取的短临异常信息是可行的 ,可以作为中强地震前的短临异常指标 .The barometric pressure efficiency and interrelation coefficient of groundwater level in five deep wells are calculated by using high order difference method and the best interrelation result between them is optimized.The anomalous variations on two curves are obtained before the Heze 5.9 earthquake in 1983 and Lulong 5.3 earthquake in 1982.The result indicats that anomalous information obtained from the method is feasible,and can be used as short impending anomaly before moderate and strong earthquakes.

关 键 词：高阶差分 气压效率 相关系数 短临异常 地震前兆 地下水 

分 类 号：P315.723[天文地球—地震学]