Lake Kariba is the world’s largest man-made lake by volume lying 1300 kilometres upstream from the Indian Ocean along the border between Zambia and Zimbabwe. It was filled between 1958 and 1963 after the completion of the Kariba Dam at its northeastern end, by flooding the Kariba Gorge on the Zambezi River.
Several islands exist on this lake like the Maaze Island, Mashape Island, Chete Island, Sekula, Sampa Karuma, Fothergill, Spurwing, Snake Island, Antelop Island, Bed Island, and Chikanka.
Lake Kariba is over 223 kilometres (140 mi) long and up to 40 kilometres (20 mi) in width, covering an area of 5,580 square kilometres (2,150 sq mi) and with a storage capacity is 185 cubic kilometres (44.4 cu mi). The mean depth of the lake is 29 metres (95 ft); the maximum depth is 97 metres (320 ft).
It is believed that the enormous mass of water which is approximately 180,000,000,000,000 kilograms, or 180 petagrams [200 billion tons]) is believed to have caused induced seismicity in the seismically active region, resulting in over 20 earthquakes of greater than magnitude 5.
How was Lake Kariba filled:
Lake Kariba was filled by first burning the existing vegetation to create a thick layer of fertile soil on the lake bed. After this, a number of fishes were introduced into the late like the sardine-like Kapenta. Also introduced were the Nile Crocodiles and Hippopotami.
The weather is mostly sunny, getting hot in mid summer and warm in mid winter. This dam provides a thriving zone for fishing. It also provides electricity to Zambia and Zimbabwe.