摘要
以青海东部5个台站(湟源、西宁、乐都、大武、门源)十几年的地震观测资料为基础,分析震前地震波波速比、振幅比、S波衰减率、尾波持续时间的异常,并提取了异常指标为地震预报提供客观依据。
On the basis of earthquake observation data beyond ten years recorded by five stations (Huangyuan, Xining, Ledu, Dawn and Menyuan) in the eastern Qinghai province,the authors have analysed the anomalies of Vp/Vs ratio,amplitude ratio S-wave attenuation rate and coda wave duration time,and got the anomalous index for earthquake prediction.
出处
《高原地震》
1999年第1期53-61,共9页
Plateau Earthquake Research
基金
西宁市科技计划项目!97-R-33
关键词
波速比
振幅比
S波衰减率
尾波持续时间
青海东部
V_p/V_s ratio Amplitude ratio S -wave attenuation rate Coda waveduration time Eastern Qinghai province