2006年文县5.0级地震序列特征和震前M_L3.0地震活动特征  

Characteristic of Wenxian MS5.0 Earthquake Sequence in 2006 and Seismic Activity with M_L≥3.0 before the Main Shock

作　　者：代炜[1] 陈立琼 严武建[1] 

机构地区：[1]中国地震局兰州地震研究所,甘肃兰州73000 [2]兰州市地震局,甘肃兰州73000

出　　处：《西北地震学报》2007年第3期293-295,共3页Northwestern Seismological Journal

基　　金：地震科学联合基金(C07048);中国地震局兰州地震研究所科技论著编号:LC20070008

摘　　要：2006年6月21日甘肃文县5.0级地震的地震序列余震发育,判定为主震-余震型。之前该地区100多年中强地震平静;震前一年ML3.0以上地震频次增高、地震连发;震前一月ML3.0地震活动平静。没有孕震空区和条带存在。In the earthquake sequence of Wenxian Ms5. 0 event on Jun. 21,2006, in Gansu province, the aftershocks were rich, so the type of shock is mainshock-aftershock sequence. No moderate or strong earthquakes occurred in 100 years before the event, but ML ≥3.0 events had increased and occurred one after another with groups in one year before the mainshock. Until one month before, the seismic activity went quiet. No seismic gap and belt is formed.

关 键 词：2006年文县5.0级地震 地震序列 活动特征 

分 类 号：P315[天文地球—地震学]