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)
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
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Previous news
Wed, 13 Jan 2021, 06:00
GeoNet reported that volcanic tremor at Ruapehu declined to low levels on 29 December 2020, and remained low; volcanic gas emissions returned to background levels by the next day. Water chemistry had only slightly changed compared to data collected a few weeks prior. Although the temperature of the crater lake water remained high (40 degrees Celsius), the period of heightened unrest was over; the Volcanic Alert Level was lowered to 1 and the Aviation Color Code was lowered to Green on 11 January. ... Read all
Mon, 11 Jan 2021, 11:46
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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