张北6.2级地震序列特征  

CHARACTERISTICS OF ZHANGBEI M6. 2 EARTHQUAKE SEQUENCE

作　　者：李淑莲[1] 戴英华[1] 刘志辉[1] 

机构地区：[1]河北省地震局,石家庄050021

出　　处：《华北地震科学》1998年第3期28-33,共6页North China Earthquake Sciences

摘　　要：1998年1月10日张北6．2级地震后，我们根据《地震现场工作大纲和震情分析指南》[1]用b值、h值、u值、K值对该次地震序列进行了综合判定。结果认为此次地震为主震余震型。张北地震序列在衰减过程中出现以4级地震为峰值有节律的起伏，在时间上有较规则的准周期，且每一组起伏前密集—平静规律十分明显。After the Zhangbei M6. 2 earthquake on January 10, 1998,comprehensive judgement was made for the earthquake sequence by b value,h value,u value and k value. The result considered that the earthquake belongs to main shock aftershock type. The Zhangbei earthquake sequence showed regular fluctuations with earthquake of magnitude 4 as peak value in attenuation process,showed relateively regular quasi-period in time and the concentration-quiet law is quite obvious before each group fluctuation.

关 键 词：张北地震 地震序列 余震型序列 H值 ui指数 

分 类 号：P315.2[天文地球—地震学]