Lake Rotorua

New Zealand / Bay of Plenty / Rotorua /
 lake, caldera, invisible
Lake Rotorua is the second largest lake in the North Island of New Zealand by surface area, and covers 79.8km2.

The lake was formed from the crater of a large volcano in the Taupo Volcanic Zone. Its last major eruption was about 240,000 years ago.

Mokoia Island, close to the centre of the lake, is a rhyolite dome.
Wikipedia article: http://en.wikipedia.org/wiki/Lake_Rotorua
Nearby cities:
Coordinates:   38°5'20"S   176°16'16"E

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  • he Rotorua Caldera is one of several large volcanoes located in the Taupo Volcanic Zone on the North Island of New Zealand. Its last major eruption was about 240,000 years ago. At this time, the Mamaku ignimbrite, covering about 4000 square km, was deposited. After the eruption, the magma chamber underneath the volcano collapsed. The circular depression left behind is the current caldera, about 22 km (14 miles) in diameter and now occupied by Lake Rotorua. Mokoia Island, close to the centre of the lake, is a rhyolite dome. There are other domes like Hinemoa Point, Ngongotaha, Pohaturoa and Pukeroa. The most recent magmatic eruption occurred less than 25,000 years ago, creating some of the smaller lava domes.[1] There is also much geothermal activity.
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This article was last modified 4 years ago