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Lake Rotorua (Māori: Te Rotorua nui ā Kahumatamomoe) is the second largest lake in the North Island of New Zealand by surface area, and covers 79.8 km 2. [1] With a mean depth of only 10 metres it is considerably smaller than nearby Lake Tarawera in terms of volume of water.
LAKE ROTORUA An aerial view of the whole lake with its central island Photo: G.R.Fish A. LOCATION. South Auckland, New Zealand. 38:05S, 176:15E; 280 m above sea level. B. DESCRIPTION. The lake basin originated in a caldera about 100,000 years ago. Further volcanic activity changed the shape and drainage from the basin.
Lake Rotorua, considered to be New Zealand’s most productive fishery, has a surface area of 79.8 square kilometres, and is the largest lake in Rotorua Lakes District and the second largest lake in the North Island, after Lake Taupo.
Lake Rotorua is the largest of the lakes with Lake Tarawera close behind, it is also the second largest lake in the North Island by surface area and covers 79.8 square kilometres (30.8 square miles).
Lake Rotorua is teardrop-shaped, about 12 kilometres from north to south and 10 kilometres west to east, with a maximum depth of only 25 metres. The lake’s full name is Te Rotoruanui-a-Kahumatamomoe, after Kahumatamomoe, the Arawa ancestor who is believed to have sighted the lake first.
This beautifully peaceful lake has a violent history. One of several large volcanoes in the Rotorua region, its underlying magma chamber collapsed after a massive eruption around 200,000 years ago. The collapse created a circular caldera about 16 kilometres wide, which filled with water to form the North Island's second largest lake.
At 80sq km, Lake Rotorua has the largest surface area of the district’s lakes. It also has the largest catchment area at about 508sq km. Pasture is the main land cover in the catchment, followed by indigenous vegetation.
