扎兰屯地区测震学指标分析  

Seismological Index Analysis in Zhalantun Area

作　　者：高源 张帆[2] 王鑫[2] 张辉 GAO Yuan;ZHANG Fan;WANG Xin;ZHANG Hui(Dongsheng seismic station,Ordos,Inner Mongolia,017000,China;Earthquake Agency of Inner Mongolia Autonomous Region,Hohhot,Inner Mongolia,010010,China)

机构地区：[1]东胜地震台,内蒙古鄂尔多斯017000 [2]内蒙古自治区地震局,内蒙古呼和浩特010010

出　　处：《山西地震》2018年第3期1-4,9,共5页Earthquake Research in Shanxi

摘　　要：文章运用2008至2016年内蒙古地震台网观测资料,对扎兰屯地区的b值、波速比时空特征进行分析。根据震例和经验,低b值和波速比低值有一定的震兆意义。b值空间扫描结果显示,额尔古纳和阿荣旗地区为低b值区域。波速比空间上看,牙克石和扎兰屯一带为波速比低值区域,波速比在空间上西北侧高、东南侧低。结合b值、波速比构造特征,判断牙克石-扎兰屯可能为应力积累区域。Based on the observation data of Inner Mongolia Seismic Network from 2008 to 2016,the spatial and temporal characteristics of b value and wave velocity ratio in Zhalantun area are analyzed.The low b value and low wave velocity ratio have certain precursory significance according to the earthquake cases and experience.The spatial scanning result of b value shows that the low regions of the value are in Eergu＇Na and Arong Qi area.The area of Yakeshi and Zhalantun is regions with low velocity ratio,which is higher in the northwest and lower in the southeast.Combined with b value and wave velocity ratio,the Yakeshi-Zhalantun area may be the stress accumulation area.

关 键 词：地震活动性 波速比 B值 

分 类 号：P315.3[天文地球—地震学]