The borehole damage induced by earthquakes during hydrocarbon exploration and production is attracting growing attention. For safe production it is important to study the relationship between seismotectonics and borehole damage. A series of earthquakes, with maximum magnitude reaching M5.0, occurred on March 28th, 2019 in Mangya, Qinghai province. Their epicenters were located in the Shizigou structure and several wells in the Qaidam Basin were damaged during these earthquakes. Based on highresolution seismic and drilling data, this paper depicts the seismotectonics and the distribution of borehole damage for further investigation into the causes of the borehole damage. Results show that a suprasalt detachment structure and a subsalt positive flower structure comprise the Shizigou structure. The seismotectonics of these earthquakes involve a salt body with nonuniform thickness. The damaged wells during the earthquakes are mainly located in the NE limb of the Shizigou anticline and are close to the thickest part of the salt body. A plane which roughly consists of the borehole damage points is situated on the top surface of the salt body and is parallel to the layer. The result of the focal mechanism solution shows that one plane which dips steeply to the SSE mainly thrusts with a small left-lateral strike-slip component, whereas another plane which dips gently to the NE has both thrust and left-lateral strike-slip components. The two planes represent a branch of the subsalt basementengaged fault and the suprasalt detachment thrust fault respectively. Considering the uncertainty in the hypocenter location, either the subsalt branch fault or the suprasalt thrust detachment fault could be the causative fault, though the former is more likely. The reason for the borehole damage can be attributed to detachment along the top surface of the unstable salt during coseismic faulting. Thus, this paper reports an instance of borehole damage induced by earthquakes in salt tectonics.