1989年以来大同-阳高3次5级以上地震序列精定位研究  

Study on the Precise Location of Three Datong-Yanggao Earthquakes with M≥5 since 1989

作　　者：靳玉科[1,2] 张青玄[1,2] 马金平[1,2] 杨甜 贾海玉[1,2] 侯玉文[1,2] Jin Yu-ke;Zhang Qing-xuan;Ma Jin-ping;Yang Tian;Jia Hai-yu;Hou Yu-wen(Daixian Central Seismic Station, Shanxi Earthquake Agency, Daixian, Shanxi 034200, China;National Continental Rift Valley Dynamics Observatory of Taiyuan, Taiyuan, Shanxi 030025, China)

机构地区：[1]山西省地震局代县中心地震台,山西代县034200 [2]太原大陆裂谷动力学国家野外科学观测研究站,山西太原030025

出　　处：《山西地震》2020年第2期1-5,共5页Earthquake Research in Shanxi

摘　　要：通过对大同-阳高震区1989-1999年间发生的3次显著地震序列进行双差精定位,研究发现,重新定位后的震源位置呈NNE和NNW两个条带分布,序列空间位置与地震烈度图大体吻合。结合地震烈度图与前人研究成果,认为3次地震序列分别发生在NNE大王村断裂和NNW团堡断裂上,平均震源深度比山西地震台网定位深度有所加深。Based on the double-difference precise location of three significant earthquake sequences in the Datong-Yanggao earthquake area during 1989-1999,it is found that the hypocenter after relocation is distributed in two bands of NNE and NNW,and the spatial position of the sequence is basically consistent with the seismic intensity map.Combined with the seismic intensity map and previous research results,it is considered that the three earthquake sequences occurred on NNE Dawangcun fault and NNW Tuanbao fault respectively,and the average focal depth is deeper than the positioning depth of Shanxi seismic network.

关 键 词：地震序列 大同-阳高震区 双差定位法 震源位置 

分 类 号：P315.22[天文地球—地震学]