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利用同时反演两个点源震源机制的原理，估计了１９９６年２月３日云南丽江主震的震源机制，得到丽江主震由两次主破裂组成，两次破裂的时差约１２ｓ，相距约２６ｋｍ．第１次破裂形成近南北向的张性倾滑走滑断裂，第２次破裂的机制需进一步研究．介绍了同时反演两个点源机制的方法及直接分析数字化波形记录的结果，讨论了一些相关问题．认为１９９５年１０月的武定地震和本次丽江地震是同一力学过程在不同时空点上的表现，其发生顺序与动力传递的方向有关．
Based on the principle of simultaneous inversion of focal mechanism of two point sources, the focal mechanism of the main shock of Lijiang, Yunnan, February 3, 1996 is estimated. The main shock of Lijiang consists of two main fractures, and the time difference between the two fractures is about 12s, 26km. The first rupture formed a nearly north-south trending dip-slip strike-slip fault. The mechanism of the second rupture needs further study. The methods of simultaneous inversion of two point source mechanisms and the direct analysis of the results of digital waveform recording are discussed. Some related problems are discussed. It is considered that the Wuding earthquake in October 1995 and this Lijiang earthquake are the manifestations of the same mechanical process at different time-space points, and the order of their occurrence is related to the direction of power transmission.