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ML ≥ 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QC（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.
2019,40(1): 48-52 收稿日期：2018-8-28
DOI：10.3969/j.issn.1003-3246.2019.01.005
基金项目：内蒙古自治区地震局局长基金（项目编号：2018JC05）
作者简介：翟浩(1990-),男,助理工程师,主要从事地震编目及系统运维工作。E-mail:496831965@qq.com
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