2003年北黄海5.1级地震的地震活动特征  

SEISMICITY CHARACTERISTICS OF BEIHUANGHAI M_L5.1 EARTHQUAKE IN 2003

作　　者：迮安民[1] 尤权民[1] 梁永信[1] 陈尚尉[1] 姚菲菲[1] 隋玉鹏[1] 

机构地区：[1]丹东地震台,辽宁丹东118000

出　　处：《东北地震研究》2006年第2期58-63,共6页Seismological Research of Northeast China

摘　　要：对2003年北黄海5.1级地震的地震活动背景、地震序列、震中周围中小地震活动图像及地震学参数等进行了详细分析。认为该次地震为前-主-余型,经历了一个活跃-平静-发震的过程;地震前震中附近出现了孕震空区和一些地震活动性参数异常。It was analyzed that seismicity background, earthquake sequence, seismicity pattern of moderate- small earthquake around epicenter and seismology parameter of Beihuanghai ML5.1 earthquake in 2003. The result shows that the earthquake sequence is mainly foreshock - mainshock -aftershock type and goes through a process of activity -- quiescence - happening earthquake, appears seismogenic gap around the epicenter as well as some seismicity parameter anomalies before this earthquake.

关 键 词：地震序列 孕震空区 地震活动性参数 

分 类 号：P315.7[天文地球—地震学]