Perhitungan cadangan batubara penting dalam eksplorasi untuk menentukan kelayakan ekonomi dari penambangan. Hasil perhitungan cadangan penambangan kemudian digunakan untuk mengevaluasi apakah kegiatan penambangan yang direncanakan layak atau tidak. Studi ini berlokasi di wilayah Muarabungo di cekungan Sumatra Selatan. Secara fisiografis Cekungan Sumatra Selatan adalah Cekungan Tersier. Dalam penelitian ini digunakan Metode Nearest Neigbour Point, Metode Inverse Distance Weighting dan Metode Kriging untuk mengetahui sumber daya batubara. Hasil perhitungan cadangan batubara pada Metode Nearest Neigbour Point diperoleh volume batubara 458.240 m3, dengan tonase 960.929,28 ton, volume overburden 3.735.200 m3, dan rasio nilai pengupasan 1:3,887. Dalam metode pembobotan jarak terbalik Inverse Distance Weighting 967.386 ton, overburden 3.826.800 m3, dan stripping ratio 1:3.955. Sedangkan dalam Metode Kriging, volume batubara adalah 446.760 m3, dengan tonase 967.386 ton, overburden 3.908.600 m3, dan stripping ratio 1: 4.166.
Determination of the location of the hypocenter is very necessary to monitor the potential for seismic hazard. Positioning and seismic energy can help safety workers determine which areas can be mined or temporarily halted. Earthquakes in underground mines are caused by seismic induction due to mining activities such as blasting processes, hydrofracturing, vehicle activities, etc. Earthquakes that occur are generally clustering. Earthquake events generally occur in mine openings, this is caused by mass compensation taken. The data used in this study are synthetic micro-earthquake data around the mining area. To obtain a high level of accuracy and precision, especially in determining the location and depth in determining the hypocenter using the Double-Difference (DD) method. The results of the microseismic relocation in the study area are well covered, as evidenced by the residual histogram and shift distribution. The shift of the microseismic before and after being relocated spread in all directions with the dominant direction in the NE – SW direction. The value of the microseismic shift before and after being relocated ranged from 0.5 meters to 150 meters.
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