1. 1 School of Mines China University of Mining and Technology Xuzhou 221116 China cumt.edu.cn
2. 2 Jiangsu Engineering Laboratory of Mine Earthquake Monitoring and Prevention China University of Mining and Technology Xuzhou 221116 China cumt.edu.cn
3. 3 Xuzhou Wushuo Information Co. Ltd. Xuzhou Jiangsu 221116 China
4. 4 State Key Laboratory of Coal Resources and Safe Mining China University of Mining & Technology Xuzhou Jiangsu 221116 China cumt.edu.cn
5. 5 Institute of Mining Engineering Shandong University of Science and Technology Tai’an 271019 China sdust.edu.cn
6. 6 Shandong Energy Group Jinan 250013 China
7. 7 Department of Risk Management China Huarong International Holdings Limited China