摘要
本文研究了1970年以来东北地区发生的MS≥5.0浅源地震孕育过程中震源区附近的地震活动空间图像变化特征。结果显示:在9次(组)MS≥5.0地震中,有8次地震前在震源区附近出现孕震空区,其中7个孕震空区中强震前出现了逼近地震;6次地震前震源区附近出现了异常地震条带。
It was studied that the characteristics of the spacial seismicity pattern nearby the focul region of the shallow focus earthquakes （Ms≥5.0） accurred in Northeast area since 1970. The results indicated that thc seismogenic gap apperded nearby the focul region before 8 events, the approaching earthquake appearded in the seismogenic gap before the moderate - strong earthquake and the anormalous seismic belt appeared nearby the focul region befor 6 events.
出处
《东北地震研究》
2005年第4期32-38,共7页
Seismological Research of Northeast China
基金
"十五"国家重点科技攻关项目子课题部分工作成果(2004BA601B01-01-01)
关键词
东北地区
中强震
地震活动图像
地震空区
地震条带
异常分析
Northeast area
Moderate earthquake
Seismic pattern
Seismic gap
Sesmic belt
Anomaly analysis
