Comparison of seismic location methods on a South African gold mine

This paper explores two seismic location methods. One was a simplex method based on the Nelder-Mead simplex<br>method (Nelder and mead, 1965). The other is a double difference method developed by Spottiswoode and Milev<br>(1998). The two methods were compared using data obtained from Elandsrand gold mine. An initial area on the<br>mine was chosen (15 line) and the mine locations and the relocations using the simplex method and the hybrid<br>method were examined. The velocity model used was that given by the mine dataset.