Rotorua, New Zealand
38.08 S, 176.27 E
summit elevation 757 m
Caldera
Ruapehu is one af New Zealand's most active volcanoes. Ruapehu has a single vent with a crater lake.
At least five other vents have been active during the Holocene. Intense volcanic tremor occurred on 17th July 2000 under the volcano.
A hydrothermal eruption occurred at Rotorua on 26th January 2001. This was the largest hydrothermal eruption since 1966.
A hot muddy pool 3 m in diameter in Kuirau park was the source of the eruption.
Blocks and ejecta were thrown 100 m high and 1 m diameter blocks were thrown 50 m away.
25,000 years ago.
Currently hydrothermal activity.