Location Results Error of Regional Automatic Earthquake Reporting and Manual Earthquake Reporting in Yunnan Seismic Network

The location result error of regional automatic earthquake reporting and manual earthquake reporting of Yunnan seismic network was compared and analyzed base on officially published earthquake catalog from Jul. 1, 2009 to Dec. 31, 2017, the results shows that: ① The time of automatic quick report is not affected by the distribution of stations, while the time of manual quick report is closely related to the distribution of stations. ② For the determination of epicenter location, category 1 earthquakes are basically within the specified range, but there are big problems in automatic reporting of category 2 and 3 earthquakes. Although manual earthquake reporting has been improved, it still needs further optimization. ③ The regional automatic earthquake reporting system has a larger deviation in determining the magnitude of earthquakes with M≥4.5, and there is basically no problem in manual earthquake reporting. ④ The errors of origin time and depth are basically within the specified range, and the earthquakes with error exceeding the specified range are basically distributed in areas with fewer stations and unreasonable distribution of stations. Manual earthquake reporting has no obvious effect on improving the results. The missing report and false report are also analyzed to provide some references for the improvement of the earthquake report in Yunnan network.