摘要
利用双差定位法对发生在广西平果M_L3.0级地震震中附近的震群进行重新定位,得到78次地震定位结果。结果显示:地震震中集中分布于排泥库附近的西南侧,方向呈北西向,震源深度约6km。由上述研究结果可知,利用双差定位法定位精度比较高,特别是在减小残差、测定误差、控制震中分布及震源深度等方面,均比原来的定位结果有较大的改进。
The epicenters of ML3.0 earthquake swarms in Pingguo are relocated with the double difference location method and 78 earthquakes location results are obtained. The results show that the earthquake epicenters are concentrated in the southwest side of the mud pool in north - west direction, the focal depth is about 6 km. The positioning accuracy is higher than the original positioning results by using the double difference method, especially in the reduced residuals, evaluated error, controlling the distribution of the epicenter, focal depth, etc.
出处
《高原地震》
2015年第4期11-14,共4页
Plateau Earthquake Research
基金
广西科学研究与技术开发计划项目(桂科攻1298005-2)
广西科学研究与技术开发计划项目(桂科攻12426001)资助
关键词
平果震群
双差定位法
重新定位
Pingguo earthquake swarm
Double difference location method
Relocate position
