近年来,我国西北地区的地震活动明显增强,甘宁青地区发生了一系列中强地震,其中门源、灵武、礼县地震前后观测到了明显的形变异常。
袁铭.几次地震的形变异常与地震预报探讨[J].地震工程学报,1989,11(s1):37-41. Yuan Ming. DEFORMATION ANOMALIES OF SEVERAL EARTHQUAKES AND PRELIMINARY STUDY ON EARTHQUAKE PREDICTION[J]. China Earthquake Engineering Journal,1989,11(s1):37-41.
