Abstract We collect 371 focal mechanism solutions in northeastern Tibetan plateau and its surrounding areas, and carry out a grid 1°×1° tectonic stress field inversion. The results show that the maximum principal compressive stress on the inner edge of the northeastern Tibetan plateau is mainly NE, and the maximum principal compressive stress on the outer edge shows the characteristics of clockwise rotation from west to east, that is, the axis of the maximum principal compressive stress changes from near NNE in the west to NE in the middle, and then from NE in the middle to NWW in the east. From the perspective of different depths, the northeastern Tibetan plateau is calculated by 2°×2° stress field inversion. The results show that there is a huge difference in the fault system between the upper and lower parts of the crust, and the reason for this difference may be related to the compressive thickening of the crust.
FENG Bing,HAO Ming,ZHANG Zhipeng et al. Current Tectonic Stress Field and Seismic Activity in Northeastern Tibetan Plateau and Its Surrounding Areas[J]. jgg, 2022, 42(10): 1067-1073.
FENG Bing,HAO Ming,ZHANG Zhipeng et al. Current Tectonic Stress Field and Seismic Activity in Northeastern Tibetan Plateau and Its Surrounding Areas[J]. jgg, 2022, 42(10): 1067-1073.
