By Munacho Chimonyo—A series of earthquakes shook the Kariba region earlier this week, with authorities confirming multiple seismic events but reporting no major damage or casualties.

The Zambezi River Authority (ZRA) attributed the tremors to reservoir-induced seismicity caused by fluctuations in water levels within the Kariba reservoir.

The most significant quake, recorded on Monday, had a magnitude of 4.9 and was centred approximately 19 kilometres southeast of the Kariba Dam, near Antelope Island in Zimbabwe.

ZRA Chief Executive Munyaradzi Munodawafa explained that such seismic activity has been an occasional feature in the area since the construction of the dam, reassuring residents about its safety.
“The earthquakes in Kariba, Siavonga, and surrounding areas are relatively small and have not caused ground vibrations significant enough to pose a threat to the dam wall’s stability,” Munodawafa stated.

Since December 1, 2024, six other earthquakes with magnitudes ranging from 4.1 to 4.7 have been reported in the region.

The epicentres were located within the Kariba reservoir or nearby areas, such as the Charara Safari Area, between 19km and 40km southeast of Kariba Town.

ZRA confirmed that inspections and data analysis following the tremors showed no unusual activity, with the dam continuing to operate under normal conditions.

Residents have been advised to report any irregularities or concerns as a precautionary measure.

The Kariba Dam, jointly operated by Zambia and Zimbabwe, remains a vital infrastructure project, providing the region with hydroelectric power, water storage, and flood control.

While the earthquakes have unsettled locals, authorities remain vigilant, with continuous monitoring to ensure public safety and the dam’s structural integrity.

NewsDay/ZimEye