摘要
计算了2002～2004年周至井水位的气压效率和相关系数,初步分析了其与地震的关系,认为在2002年甘肃玉门5.9级地震、2003年和2004年甘肃岷县5.2、5.0级地震前,该井水位的气压效率和相关系数同时出现了明显的短临前兆异常。
In the paper, the barometric efficiency and correlation coefficients of groundwater level from 2002 to 2004 in Zhouzhi well have been calculated, and their relation to earthquake is also analyzed. It is found that the mentioned coefficients show obviously short-term precursor anomaly before the Yumen M5.9 earthquake in 2002, the M5.2 （2003） and M5.3 （2004） earthquakes in Minxian, Gansu.
出处
《华南地震》
2007年第4期61-66,共6页
South China Journal of Seismology
关键词
周至井
水位
气压效率
相关系数
中强地震
Zhouzhi well, groundwater level, barometric efficiency, correlation coefficient,moderate-strong earthquake
