朝阳地震台地倾斜观测映震效能分析与讨论  

THE ANALYSIS AND DISCUSSION OF AT CHAOYANG SEISMICSTATION GROUND TILT OBSERVATION THE EARTHQUAKE REFLECTING PERFORMANCE

作　　者：赵永志[1] 贾晓东[2] 战晓芳[1] 黄亮[2] 滕藤[1] 邹向荣[1] 

机构地区：[1]朝阳地震台,辽宁朝阳122000 [2]辽宁省地震局,辽宁沈阳110034

出　　处：《防灾减灾学报》2014年第1期39-44,共6页Journal of Disaster Prevention And Reduction

摘　　要：结合朝阳及周边地区地震,分析地震前朝阳地倾斜观测数据异常变化,结果表明朝阳地倾斜观测在周边Ms≥3.0级地震发生前存在较明显的震前倾向异常变化,并具有以下特征:(1)同一方位的地震,震前出现地倾斜倾向异常的分量具有统一性,且加速方向具有一致性;(2)朝阳地倾斜观测倾向异常有较强的方向性,但幅度特征不明显,与震中距关系不大。Combined with the earthquakes in Chaoyang and surrounding area, the abnormal changes of observation data of ground tilt are analyzed. The results showed that there were obvious changes before Ms≥3.0 earthquakes occured And it has two characteristics as the following showed： （1） Earthquakes of the same range, has the unified components of the ground tilt abnormality before the earthquake occured; （ 2） Chaoyang ground tilt observation tendency anomaly has a strong direction, but the amplitude characteristic is not obvious, which has has little relationship.with the epicentral distance.

关 键 词：地倾斜 朝阳地震台 倾向异常 

分 类 号：P315.9[天文地球—地震学]