区域数字地震台网实时速报系统试运行情况分析

The test running of real-time earthquake information system for province-level seismic network

研制了一套区域数字地震台网实时速报系统,并于2005年7月在福建数字地震台网试运行。本文对系统在2005年7月至2006年5月间处理的网内震和网缘震进行了统计与分析。结果表明,系统对90%以上网内M_L≥2．0地震的处理结果达到中国地震局地震速报评比满分的要求;系统对网内线以外100 km区域范围内M_L≥2．5的网缘地震也有一定监控能力。本文对系统处理其他网缘震、网外震与人工爆破的不足之处也进行了分析与讨论。

We developed a real-time earthquake information system for province-level seismic network. It has been tested running in Fujian Digital Seismic Network since July, 2005. In this paper, we analyzed the treatment results of local and regional earthquake occurred from July, 2005 to May, 2006. The results revealed that the automatic treatment result of over 90 percent earthquakes, which are larger than 2.0 degree and occurred inside seismic network, could match the best standards released by China Earthquake Administration. The results also show that this system can get a referential treatment result when an earthquake occurred outside the seismic network nearer than 100 km. We also discussed the shortage of the system in this paper.