| 人工爆破检验区域地震台网地震定位精度 |
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| 引用本文： | 黄文辉,吕作勇,康英,叶春明.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. |
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| 作者姓名： | 黄文辉 吕作勇 康英 叶春明 |
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| 作者单位： | 1. 中国广州 510070 广东省地震局;2. 中国广州 510070 中国地震局地震监测与减灾技术重点实验室;3. 中国广州 510070 广东省地震预警与重大工程安全诊断重点实验室 |
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| 基金项目： | 地震行业科研专项“全国统一编目系统及其相关体系研制”（项目编号：201308008） |
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| 摘 要： | 利用广东地震台网记录的2015年6月珠江口海陆联合地震构造探测项目人工爆破资料,采用MSDP地震分析软件提供的3种常用地震定位方法,对6次人工爆破事件进行分析,将定位结果与已知爆破位置进行对比,验证地震定位精度。结果表明,当地震定位数据满足台网分布方位均匀度ΔU≤0.35、次空隙角(S_(gap))≤160°时,广东地区地震震中定位精度优于3 km。
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| 关 键 词： | 人工爆破 地震定位精度 广东地震台网 |
Testing earthquake location accuracy of regional seismic network by artificial explosion |
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| Huang Wenhui,Lv Zuoyong,Kang Ying,Ye Chunming.Testing earthquake location accuracy of regional seismic network by artificial explosion[J].Seismological and Geomagnetic Observation and Research,2017,38(2):77-80. |
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| Authors: | Huang Wenhui Lv Zuoyong Kang Ying Ye Chunming |
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| Institution: | 1. Earthquake Administration of Guangdong Province, Guangzhou 510070, China;2. Key Laboratory of Earthquake Monitoring and Disaster Mitigation Technology, China Earthquake Administration, Guangzhou 510070, China;3. Key Laboratory of Guangdong province Earthquake Early Warning and Safety Diagnosis of Major Projects, Guangzhou 510070, China |
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| Abstract: | In order to testing the accuracy of earthquake location, we analyzed 6 explosion events by three commonly earthquake location methods provided by MSDP earthquake analysis software. The 6 explosion events were recorded by Guangdong seismic network and exploded by onshore-offshore seismic exploration on Zhujiangkou area in June 2015. Through comparing and analyzing the location results, it shows that when the data satisfies azimuth distribution uniformity of the network ΔU≤0.35, second azimuth gap (Sgap)≤160°, the location accuracy of epicenter is within 3 km in Guangdong area. |
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| Keywords: | artificial explosion earthquake location accuracy Guangdong seismic network |
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