石泉M_L4.7级地震前天水深井水温的短临异常特征  

SHORT-IMPENDING ANOMALOUS CHARACTERISTICS OF WATER TEMPERATURE IN DEEP WELL BEFORE SHIQUAN EARIHQUAKE WITH M_L4.7

作　　者：缑亚江 刘东升 何松毅 周建强 高曙德 

机构地区：[1]甘肃省地震局天水中心地震台,甘肃天水741020 [2]甘肃省地震局武都中心地震台,甘肃武都746000

出　　处：《高原地震》2003年第4期45-51,共7页Plateau Earthquake Research

摘　　要：分析了天水台数字深井水温资料在陕西石泉ML4 7级地震前的异常特征,发现在震前5天内深井水温发生大幅度的降升变化,呈负脉冲形态,表现为典型的脉冲型前兆异常形态特征。Digital data of water temperature in deep well are analyzed,and found that great changes of the water temperatures five days before Shiquan earthquake with M_L4.7,presented negative pulse,and the characteristics are typical pulse　precursory anomalies.

关 键 词：深井水温 异常特征 石泉地震 

分 类 号：P315.723[天文地球—地震学]