The Jiuzhaigou Ms 7. 0 earthquake in 2017 occurred in the eastern margin of the Tibetan Plateau after the Wenchuan Ms 8. 0 earthquake in 2008 and the Lushan Ms 7. 0 earthquake in 2013. Comprehensive analysis ofseismic source mechanism solution of the earthquake, historical earthquakes, distribution of aftershocks and historical earthquake,regional stress field,active faults are carried out in order to unravel the seismogenic structures and dynamic mechanism of the Ms 7. 0 Jiuzhaigou earthquake. The prelimin...