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.
出处
《华北地震科学》
1998年第3期28-33,共6页
North China Earthquake Sciences
关键词
张北地震
地震序列
余震型序列
H值
ui指数
earthquake sequence
main shock after shock type sequence
h value
u index
