摘要
基于Sato单次散射模型,利用2004年1月—2007年9月重庆市台网记录的荣昌县及其附近地区48个ML≥2.0地震波形资料,计算了该区域尾波QC值,并对QC值与频率之间的依赖关系进行了拟合。结果表明该区为QC值低值、对频率强依赖性区域。另对QC值分三个时间段进行研究,显示QC值变化量不大,结果较稳定,说明在研究时段内该区域地下介质结构无明显变化。
Based on the single scatter model （Sato）, using 48 earthquake wave form data with ML≥2.0 from January in 2004 to September in 2007 recorded by the Chongqing earthquake net, the Qc values of coda in Rongchang region is calculated, and relationship between Qc value and frequency is polyfitted. The result indicates that this region is low Qc value but dependence on frequency strongly. In addition, studied on Qc value in three segments of time, the result display that coda wave Qc value are steady in each segment, and the configuration of medium underground is steady in the region and each segment of time too.
出处
《西北地震学报》
CSCD
北大核心
2009年第1期97-101,共5页
Northwestern Seismological Journal
基金
重庆市科技攻关计划项目(CSTC
2008AB0095)
关键词
尾波QC值
流逝时间
依赖关系
重庆荣昌
Coda wave Qc value
Lapse time
Dependent relation
Rongchang region in Chongqing
作者简介
魏红梅（1980-），女（汉族），重庆合川人，研究实习员，现从事地震预报工作
