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an average depth of 2500 m below surface, this shaft pillar hosts 1 surface and 3 sub-shafts. The surface shaft terminates approximately 40 m from the reef horizon and the sub-shafts all transverse the reef. Three major geological structures are prevalent in the shaft pillar with displacement of up to 70 m. In addition, numerous critical excavations are situated in close proximity either to the reef horizon or to the aforementioned geological structures. Stress, host rock conditions and the response of the host rock to mining are at its worst during the extraction of the shaft pillar especially at depth. Seismicity associated with the mining extraction and major geological structures increases the risk to workers and the integrity of critical excavations. This paper attempts to evaluate the seismic potential when extracting the shaft pillar through the process of correlating of numerical modelling and seismic monitoring of other similar highly stressed areas on the mine. An Evaluation of the Seismic Hazard Prior to the Extraction of a Shaft Pillar at Kloof Gold Mine