Faculty of Environmental Sciences the University of Silesia in Katowice 41-200 Sosnowiec Poland;
Polish Mining Group 40-039 Katowice Poland;
Central Mining Institute 40-166 Katowice Poland;
Faculty of Environmental Sciences the University of Silesia in Katowice 41-200 Sosnowiec Poland;
Mining seismicity; Seismic source volume; Apparent volume; Hard coal mine; Longwall mining; Benioff strain;