Abstract:Based on comparative analysis of petroleum seismic and high-resolution shallow seismic profiles, combined with the focal mechanism solution and earthquake location results, we establish the shallow-deep faults distribution below the Taikang MS4.7 earthquake zone. Combining regional tectonic evolution from the late Cretaceous to Paleogene, NWW and NE-NNE shear strike slip movement in Taikang uplift makes the uplift break up into alternately tectonic conditions.Since the Neogene,under the background of the whole deposition of the Taikang uplift, tectonic activity has weakened, but tectonic deformation style alternately continues, showing sustained activity of rift boundary fault control.Furthermore, the formation of a series of Neogene Quaternary normal faults indicates the existence of deep strike slip extension.The deep source structure of the Taikang earthquake area is near NW and NE high angle faults, and the shallow structural performance is alternately tectonic style controlled by near NW strike slip faults. The deep and shallow structures controls the occurrence of the Taikang MS4.7 earthquake and its aftershocks.