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利用最早到达地震台的地幔Rayleigh波包（R1）的波形拟合方法估计了1996年3月19日新疆伽师Ms6．9地震的震源机制，其结果是：地震形成左旋压性逆冲断裂，据震源机制解的P轴（－4．15×10（18）Nm，181°，19°）和各向同性分量推测震源区受到近南北向压应力的作用，且有体积压缩效应．据宽频P波列波形随台站方位角的变化估计，破裂从下方开始向上偏东的方向进行．此次地震可能是印度板块与西伯利亚地块相互挤压的表现，标志着伽师及其邻区，或者说兴都库什弧以北地区进入了一次新的地震活动期．这个活动期可能与缅甸弧以北地区，即中缅边界地区的地震活动期相对应，是较大地球动力过程在不同时空点的表现．用本文方法可对Ms6．4以上地震的震源机制进行快速估计．
Using the waveform fitting method of the Rayleigh wave package (R1) of the earliest arrival seismometer to estimate the focal mechanism of the Jiashi Ms6.9 earthquake in Xinjiang on March 19, 1996, the result is that the earthquake formed a left- According to the P-axis (-4.15 × 10 (18) Nm, 181 °, 19 °) and isotropic components of the focal mechanism solutions, it is estimated that the source region is subjected to near-north-south compressive stress and has a volumetric compression effect. According to the wide-band P-wave waveform with the station azimuth changes estimated that the rupture from the bottom up in the east direction. The quake may be a manifestation of the mutual squeeze between the Indian plate and the Siberia block, marking a new seismicity period for Jiashi and its neighbors or areas to the north of the Hindu Kush Arc. This period of activity may correspond to the period of seismicity in the area north of the Burma arc, the border between China and Myanmar, and is a manifestation of the larger geodynamic processes at different time-space points. Using this method, we can quickly estimate the focal mechanism of Ms6.4 earthquake.