Sudden emissions of coal and gas in the Karaganda coal basin A. A. Kenetayeva, K. M. Khamzina, Zh. M. Tuleutayeva, E. K. Bekmagambetova and A. S. Kussenova E3S Web Conf., 623 (2025) 02003 Published online: 08 April 2025 DOI: 10.1051/e3sconf/202562302003