Academic Programmes - Student Biographies

KgarumeThabang Kgarume

M.S. Degree Candidate
University of the Witwatersrand

I obtained my BSc Honours degree in Geophysics in 2006 from the University of the Witwatersrand currently registered for a Masters degree in Geophysics at the University of the Witwatersrand. My research project which is titled MINE AFTERSHOCKS AND IMPLICATIONS FOR SEISMIC HAZARD ASSESSMENT is focused on assessing the seismic hazard posed by aftershocks following larger mine seismic events. The study follows two approaches:

  1. Statistical analysis, where the properties of stacked aftershock data are studied using empirical relations to estimate the hazard.
  2. Deterministic analysis, where the relationship between mining conditions (stress level, strain rate and proximity to geological features) and aftershock productivity is investigated.

Seismic data from two gold mines operating in the Carletonville mining district located in the Witwatersrand basin, where the main reefs being exploited are the Carbon Leader Reef and the Ventersdorp Contact Reef is used in the analysis. The findings of this study will provide guidelines governing re-entry to working areas (where the hazard has decreased to lower levels) following a seismic event and an understanding of the physical mechanisms governing aftershocks generation and activity.