1. Department of Earth and Space Sciences, Southern University of Science and Technology, Shenzhen, China
2. School of Resources and Safety Engineering and the State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, China
3. Department of Earth and Space Sciences and Guangdong Provincial Key Laboratory of Geophysical High-resolution Imaging Technology, Southern University of Science and Technology, Shenzhen, China