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在对四川盆地及其西部边缘震区航磁资料进行分析研究的基础上，依据频率域磁性单界面反演方法对航磁异常进行了数据处理，求取了基底磁性界面的定量埋深，结合区域构造特征、地热分布及板块运动对地震的孕育环境进行了综合研究和讨论。在前人的研究基础上，明确提出四川盆地西部边缘地区的地震活动是在青藏高原东部的川青块体向南东方向滑移，川滇菱形块体向南南东方向沿移，与扬子板块的俯冲构造相碰撞产生的板块二级构造应力场的作用下孕育和发生的。
Based on the analysis of the aeromagnetic data in the Sichuan Basin and its western margin earthquake zone, the aeromagnetic anomalies were processed according to the magnetic single interface inversion method in the frequency domain, and the quantitative buried depth of the magnetic interface was obtained. Regional tectonic features, geothermal distribution and plate movement of the earthquake breeding environment for a comprehensive study and discussion. Based on the previous studies, it is clearly proposed that the seismic activity in the western margin of the Sichuan Basin is caused by the slippage of the Sichuan-Qinghai block in the eastern part of the Qinghai-Tibet Plateau toward the south-east direction. The Sichuan- Subduction tectonics of plates collide with each other to produce and occur under the effect of the secondary tectonic stress field of plates.