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Ruapehu volcano (North Island, New Zealand): Crater Lake is heating, fluctuating temperatures continue

gio, 16 dic 2021, 02:01
02:01 AM | AUTORE: MARTIN
Fluctuating temperatures at Crater Lake since July (image: GeoNet)
Fluctuating temperatures at Crater Lake since July (image: GeoNet)
The activity of the volcano is characterized by typical heating-cooling cycle over the past months.
From early July to early September, the lake temperature rose from 20 °C to 39 °C. Through to mid-October the lake temperature declined to around 23-25 °C. Since early December a heating trend has become established, and the lake temperature is now 31 °C.
A number of small earthquakes have been recorded during temperature rise caused by an increasing flux of steam and gas into the lake.
The modelled heat flow into the lake is currently estimated at about 250 MW (megawatt), up from 50 MW in October/November.
The Volcanic Alert Level remains at Level 1 and the Aviation Colour Code remains at Green.
Source: GeoNet New Zealand volcano activity update 15 December 2021

News precedente

Tue, 28 Sep 2021, 01:38
Ruapehu volcano’s Crater Lake (image: GeoNet)
The activity at the Ruapehu's Crater Lake (Te Wai ā-moe) is characterized by roughly regular periods of heating and cooling cycles. ... Read all
Wed, 22 Sep 2021, 06:00
GeoNet reported that a heating cycle at Ruapehu's summit Crater Lake had ended. During the previous two months the temperature of the water increased from 20 degrees Celsius to a peak of 39.5 degrees on 4 September, and then decreased to 28 degrees. During the cycle the color of the lake changed from a blue-green color to a darker gray, reflecting the disturbed lake floor sediments suspended in the water from the influx of hot fluids. ... Read all
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