Focal Mechanism Solutions and Seismogenic Structures of Jingxi M_S5.2 Earthquake

We inversed the focal mechanism solutions of the main shock of Jingxi M5.2 earthquake and M4.3 aftershocks in 2019 by using CAP method. The results of M5.2 main shock and M4.3 strong aftershock are similar, and both of them are thrust type. According to the distribution of aftershocks in NE direction, it is preliminarily concluded that the Xialei-Shangying fault is a possible seismogenic structure. The depth inversion result shows that the focal depth of the main shock is 1.3 km and the aftershock is 1.2 km, which indicates that the earthquake was a very shallow earthquake, and the result is basically consistent with the data obtained from the mobile station. The result is basically reliable.