基于Sato模型的内蒙古东北部地区尾波Q值  

Based on the Sato model study coda wave Q value in the northeast of Inner Mongolia

作　　者：翟浩 王树波[1] 曹梦娜 Zhai Hao;Wang Shubo;Cao Mengna(Earthquake Agency of Inner Mongolia Autonomous Region, Hohhot 010010, China)

机构地区：[1]内蒙古自治区地震局,中国呼和浩特010010

出　　处：《地震地磁观测与研究》2019年第1期48-52,共5页Seismological and Geomagnetic Observation and Research

基　　金：内蒙古自治区地震局局长基金(项目编号:2018JC05)

摘　　要：基于Sato模型,采用2016年3月至2018年6月内蒙古东北部及临近地区发生的526次地震事件,挑选M_L≥2.0、记录清晰且信噪比较高的102次地震事件,拟合得到内蒙古东北部地区尾波Q值,得到Q_C(f)=(64.74±29.09)f^((0.8925±0.0765));Q值与依赖指数η成反比,且该区北部Q值偏高,南部Q值偏低,可能与地质构造及地震活动性有关。Based on the Sato model, 102 earthquake events with ML ≥ 2.0 and waveform clear records and high signal-to-noise ratio were selected from 526 earthquake events in the northeast of Inner Mongolia and adjacent areas from March 2016 to June 2018. The results of fitting Q value of coda wave in the northeast of Inner Mongolia is QC( f )=(64.74 ± 29.09) f^(0.8925 ± 0.0765). The Q value is inversely proportional to the dependence index η, and the Q value in the north is higher and the Q value in the south is lower. May be related to tectonic and seismic activity.

关 键 词：尾波Q值 SATO模型 内蒙古东北部 

分 类 号：P315[天文地球—地震学]