摘要
应用四川地磁台"十五"观测仪器GM-4磁通门磁力仪Z分量分钟值观测资料,研究了四川地磁Z分量分钟值空间相关特性,给出了运用分钟值空间相关法在四川地区的异常判别指标。6级地震震例研究表明,地磁Z分量分钟值空间相关法是捕捉短期、临震异常的方法之一,连续异常和单日异常的有效结合,是短临地震信息的标志之一。
By using the Z component minute - value of geomagnetic GM - 4 instrument, its space correlation characteristics are analyzed and the anomalous index in earthquake prediction in Siehuan area are given out. The results in Ms6.0 earthquake show that the space correlation method of the geomagnetic Z component mi- nute - value can find the short - impending anomalies, and the combination of continuous and one - day anom- alies is one of the precursory information before short - impending earqhquakes.
出处
《高原地震》
2014年第1期1-7,共7页
Plateau Earthquake Research
关键词
地磁Z分量
异常指标
空间相关性
地震预报
四川地区
Geomagnetic Z component
Anomalous index
Space correlation
Earthquake prediction
Si- chuan area
