利用2020年1—5月期间河南省地震构造探查工程项目实施的9次人工爆破资料，来检验“2015河南模型”和“华南模型”在河南地震台网的地震定位效果以及MSDP地震分析软件中单纯型、Hyposat和LocSAT3种地震定位方法的精度。结果显示，“2015河南模型”地震定位震中偏差较“华南模型”小，基于“2015河南模型”对比以上3种定位方法给出的定位结果，单纯型定位法计算的震中位置与实际爆破位置偏差最小。综合分析认为，在日常地震速报和编目工作中，“2015河南模型”配合单纯型定位法可作为河南地震台网地震定位的首选方法。
Using 9 artificial blasting earthquakes from the seismic structure exploration project in Henan Province from January to May 2020, the earthquake location effect of the "2015 Henan Model" and the "South China Model" in Henan Earthquake Networks were tested, as well as the precision of 3 earthquake location methods such as Simple, Hyposat, and LocSAT in the MSDP seismic analysis software. The results show that the epicenter deviation of the "2015 Henan Model" earthquake location is less than that of the "South China Model". Based on the comparison of the location results given by the above three location methods using the "2015 Henan Model", the epicenter location calculated by the simple method has the smallest deviation from the actual blasting location. Comprehensive analys is shows that the "2015 Henan Model" combined with the simple method can be used for earthquake location in Henan Earthquake Networks in daily earthquake rapid reporting and cataloging work.
2023,44（3）: 102-106 收稿日期：2021-05-20
DOI：10.3969/j.issn.1003-3246.2023.03.014
作者简介：陈梦(1991-),女,工程师,主要从事地震监测预报工作。E-mail:miyathemoplis@163.com
*通讯作者：郑培玲(1973-),女,高级工程师,主要从事测震台网的地震编目工作。E-mail:408038346@qq.com
参考文献：
陈惠芳,康兰池,金星,等. 利用福建爆破实验记录检验华南速度模型[J]. 中国地震,2018,34(2):270-282.
陈棋福,张跃勤,周静,等.数字观测时代的全球三维结构与地震定位研究[J].地震,2001,21(2):29-40.
黄文辉,吕作勇,康英,等. 人工爆破检验区域地震台网地震定位精度[J]. 地震地磁观测与研究,2017,38(2):77-80.
吕作勇,杨传成,房立华. 广东地震台网近震定位精度的经验性GT准则[J]. 震灾防御技术,2014,9(Z1):657-664.
王平,狄秀玲,李少睿,等. 用爆破事件检验区域数字地震台网常规地震定位方法的定位精度[J]. 地震地磁观测与研究,2006,27(3):25-28.
魏娅玲,蔡一川,唐涛. 利用人工爆破检验四川芦山及邻区地震定位精度[J]. 四川地震,2019,(1):1-4.
朱元清,宋秀青,刘双庆,等. 中国地震测定参考速度结构研究[M]. 北京:地震出版社,2017:276-295.
Bondár I, Myers S C, Engdahl E R, et al. Epicentre accuracy based on seismic network criteria[J]. Geophys J Int, 2004, 156(3):483-496.
