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.
引文
[1] 魏汝庆.一次ML3 7地震前的地热短临异常特征[J].地震地磁观测与研究.2000,21(5):68~69.
[2] 国家地震局科技监测司.地震地下流体观测技术[M].北京:地震出版社,1995.230~235.