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Rights: Geonet, GNS Science Published 9 April 2010 Size: 47 KB

Lake Rotorua is a caldera volcanothat erupted about 240,000 years ago. The eruption caused the mountain to collapse, and the hole has since been filled by water, forming a lake. The eruption was followed weeks later by an explosion at Ōhakuri.

Acknowledgement: GeoNet