Determination of the focal mechanism solutions of the earthquakes with M_S≥4.0 occurred in the mainland of China in January 2022

In this paper, the regional full waveform inversion of the broadband waveforms from China Seismic Network are conducted, and the focal mechanism solutions of the 13 earthquakes with M_S≥4.0 in the mainland of China from January 1 to January 31, 2022 are obtained. The results show that these earthquakes include 1 reverse faulting , 9 strike-slip faulting and 3 unknown earthquakes.