大岗山水库地震台网水库诱发地震常规定位方法对比

Comparison of conventional location methods for reservoir-induced earthquakes in Dagangshan Reservoir Seismic Network

采用MSDP软件中的单纯型、HypoSat和LocSat定位方法,从震源深度及残差等方面,对比分析2014年大岗山水库区域内123次ML≥2.0地震的定位结果,选择适用于水库诱发地震的最佳定位方法,并以库区17次定点爆破事件为例,验证最佳定位方法的可靠性。结果认为,LocSat定位方法更适用于水库诱发地震。

By using the simplex,HypoSat and LocSat positioning methods in MSDP software,the focal depth and residual error are discussed.Comparing and analyzing the location results of 123 ML≥2.0 earthquakes in the Dagangshan reservoir area in 2014,to choose the best location method suitable for reservoir-induced earthquakes.Taking 17 fixed-point blasting incidents in reservoir area as an example,than verify the reliability of the best positioning method.The results show that LocSat location method is more suitable for reservoir induced earthquakes.