摘要
本文使用1986年至1991年期间沈阳遥测地震台网记录到的1453次地震的持续时间资料(2.0≤M_L≤6.1级、5km<△<1000km),求得了辽宁省及其邻近地区多台多幅度持时震级的经验公式,结果表明,这种震级误差小,应用范围为M_L≤6.0级,解决了限幅地震无法计算震级的难题.
Making use of the data with respect to coda duration of 1453 earthquakes(2.0≤M_L≤6.1,5km<△<1000km)recorded by Shenyang telemetering seismic network from1986 to 1991,an experiential formula to determine magnitude by means of duration in appli-cation to Liaoning province and neighboring region has been given in this paper. The resutisshow that the magnitude has smaller error and overcomes difficulty of computing magnitudebecause of limited signal.