Using the method suggested in the reference 1, the source parameters of the Wuqia earthquake(M=7.3) of Aug.11. 1974 have been inversed from the vertical can-nonet P-waveform taken from 16 WWSSN stations, namely, the rupture duration is 3.0seconds;
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- 本文利用艾献[1]介绍的方法；根据16张WWSSN台记录的垂直向P波波形记录反演求得1974年8月11日发生的乌恰M_s=7.；3地震的震源参数为:破裂持续时间3
