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Ruapehu volcano (North Island, New Zealand): lake temperature is cooling again

Mo, 4. Mai 2020, 06:53
06:53 AM | VON: MARTIN
Crater Lake at Ruapehu volcano (image: @geonet/twitter)
Crater Lake at Ruapehu volcano (image: @geonet/twitter)
GeoNet reported that during February-April, Crater Lake (Te Wai ā-moe) heated slowly to a peak temperature of 42ºC. Due to a heating-cooling cycle, there is a period of slow change before a cooling trend is clearly shown in the data. That trend is now confirmed with current temperatures close to 35ºC, with further slow cooling expected. Colour temperature is grey with a few surface slicks and no obvious upwelling. At that time the water level had dropped to about 30 cm below overflow but following this weekend's rain the lake is again overflowing into the upper Whangaehu River.
The volcanic tremor intensity is weak, as it has been during the past month. After a peak of moderate strength in early March, the tremor declined slowly, almost in parallel to the lake's cooling trend.
The volcano is still a very active volcano with the potential of little or no warning.
Both the Volcanic Alert Level (level 1) and Aviation Code (Green) remain unchanged.
Source: GeoNet New Zealand volcano activity update 4 May 2020

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Mi, 29. Apr 2020, 06:00

Ruapehu volcano (North Island, New Zealand) - Smithsonian / USGS Weekly Volcanic Activity Report for 29 April-5 May 2020 (Continuing Activity)

On 4 May GeoNet reported a cooling trend of the crater lake water at Ruapehu with a current temperature of 35 degrees Celsius. During February-April the water temperature had peaked at 42 degrees Celsius. The intensity of volcanic tremor had been weak during the past month after a peak in strength in early March; tremor had declined slowly almost in conjunction with the lake water cooling trend. ... Read all
Fr, 20. Mär 2020, 05:56

Mt Ruapehu (North Island, New Zealand):increasing crater lake temperature

GNS Science Volcanologists have collected water samples from Crater Lake (Te Wai ā-moe) and the temperature of the lake is now 40°C. GeoNet believe the heating of the lake is the response to an input of hot gases and hydrothermal fluids in the wake of volcanic earthquakes beneath Mt Ruapehu in February. Prior to the earthquakes, the lake measured 24ºC. ... Read all
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Ruapehu volcano sat by (c) Google Earth View
Ruapehu volcano sat by (c) Google Earth View
Ruapehu Vulkan
Stratovolcano 2797 m / 9,176 ft
Nordinsel (Neuseeland), -39.28°S / 175.57°E
Aktueller Status: normal / ruhend (1 von 5) Ausbrüche des Ruapehu:

Typische Aktivität
Mildly explosive, formation of lahars
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