Botswana has long been considered tectonically stable; however, the Mw 6.5 Moiyabana earthquake of April 3, 2017, revealed active faults and potential seismic hazards. This research investigates the Phaphane Hill Fault near Mochudi, where a fresh fault scarp suggests recent activity. The study aims to determine the fault’s past movement, slip rate, and hazard potential, addressing key questions about earthquake occurrence in stable continental interiors and the role of ancient fault structures in localising geohazards.

The methodology combines geophysical surveys, such as resistivity profiling and seismic station deployment, with geochronological techniques, including optically stimulated luminescence (OSL) dating, to establish the timing and nature of fault activity. Results will inform whether the fault is creeping or accumulating stress that could lead to a significant earthquake.

Beyond scientific insights, the project will produce updated seismic hazard maps and promote collaboration with engineers and planners to integrate findings into safer construction practices. This work supports Sustainable Development Goal 11 by enhancing resilience and guiding development in areas of elevated seismic risk.