News and activity reports about Ruapehu volcano:

Ruapehu volcano (North Island, New Zealand): Crater Lake temperature down to 26°C

Tue, 8 Jun 2021, 20:09
20:09 PM | BY: MK
Ruapehu volcano’s Crater Lake (image: GeoNet)
Ruapehu volcano’s Crater Lake (image: GeoNet)
The activity of the volcano continued at fluctuacting levels as in December last year the elevated volcanic activity was recorded, but this unrest decreased on 11 January 2021.
During this period, volcanologists conducted to monitor gas flights, Crater Lake water samplings and temperature, a seismic activity and indicate that key parameters remain at normal ranges.
The largest observed variation in activity over the past several months has been the crater lake temperature. It was over 43 °C in early January 2021 then cooled to around 30 °C in February-March, before reheating again to just over 40 °C in early April. Since then, it has cooled again to 26 °C in recent weeks.
To maintain the lake water temperature at around 40 °C our modelling indicates that ~400 MW (megawatt) of heat was entering the lake. The heat input is currently about 100 MW.
The Volcanic Alert Level remains at Level 1 and the Aviation Colour Code remains at Green.
Source: GeoNet New Zealand volcano activity update 8 June 2021

Previous news

Mon, 11 Jan 2021, 11:46
Aerial view of Crater Lake at Ruapehu volcano (image: GeoNet)
The activity of the volcano continues at fluctuating levels during the past few months and currently continues at low levels. ... Read all
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