福建台网“九五”“十五”观测系统测定震级对比研究

Comparison of Earthquake Magnitude Determination by Two Systems of the 9th and 10th Five-year Plans of Fujian Seismic Network

运用福建台网"九五""十五"两套观测系统的资料,对两套系统测定的震级及"十五"系统测定的速度震级和仿真震级进行对比分析,得出,两套系统的震级偏差基本在观测规范允许范围之内;"十五"系统的速度震级与仿真震级偏差分布不集中,一致性较差;为"九五"与"十五"系统过渡提供参考依据。

Based on the data recorded by the two systems of the 9th and 10th five-year plans of Fujian Seismic Network, the earthquake magnitude determined by two systems and the velocity magnitude and simulated magnitude got by the System of the 10th five-year plan are compared. The results indicate that the magnitude deviation between ＇the two systems generally falls into the allowable range. Meanwhile, the magnitude deviation between velocity magnitude and simulated magnitude from the system of the 10th five-year plan distributes dispersedly, with bad consistency. This study can provide reference for the transition from the 9th to 10th five-year plan system.