Determination of the focal mechanism solutions of the earthquakes with M_S≥4.0 occurred in the mainland of China during February to March 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 20 earthquakes with M_S≥4.0 in the mainland of China from February 1 to March 31, 2022 are obtained. The types of these focal mechanism solutions show 5 reverse faulting, 14 strike-slip faulting and 1 unknown earthquakes.