Story: Volcanoes

Lake Rotorua

Lake Rotorua

Lake Rotorua partly fills the Rotorua caldera. This was formed about 230,000 years ago by a huge ignimbrite eruption. Mokoia Island, in the centre of the lake, is a rhyolite dome, formed after the caldera collapsed. Lake Rotorua was originally larger. Rotorua city, in the foreground, is built mainly on the old lake bed.

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GNS Science
Reference: CN28950/22
Photograph by Lloyd Homer

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How to cite this page:

Richard Smith, David J. Lowe and Ian Wright, 'Volcanoes - Caldera volcanoes and the Taupō Volcanic Zone', Te Ara - the Encyclopedia of New Zealand, (accessed 14 July 2024)

Story by Richard Smith, David J. Lowe and Ian Wright, published 12 Jun 2006