Ruapehu volcano (North Island, New Zealand) - Smithsonian / USGS Weekly Volcanic Activity Report for 22 September-28 September 2021 (Continuing Activity)

Wed, 22 Sep 2021, 06:00

06:00 AM | BY: VN

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.
The key monitoring parameters of water level and temperature, seismic activity, and tremor levels, were all within normal ranges. The Volcanic Alert Level remained at 1 (minor volcanic unrest) and the Aviation Color Code remained at Green.

Source: GeoNet
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From: Global Volcanism Program, 2021. Report on Ruapehu. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 22 September-28 September 2021. Smithsonian Institution and US Geological Survey.

All news about: Ruapehu volcano
Information about: Ruapehu volcano

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Fri, 16 Jul 2021, 06:14

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Tue, 8 Jun 2021, 20:09

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Ruapehu volcano’s Crater Lake (image: GeoNet)

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Wed, 13 Jan 2021, 06:00

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Mon, 11 Jan 2021, 11:46

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Aerial view of Crater Lake at Ruapehu volcano (image: GeoNet)

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Mon, 28 Dec 2020, 08:27

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Satellite imagery of Ruapehu volcano (image: Sentinel 2)

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Wed, 23 Dec 2020, 06:00

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Tue, 22 Dec 2020, 11:26

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Wed, 16 Dec 2020, 06:00

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Ruapehu volcano (North Island, New Zealand) - Smithsonian / USGS Weekly Volcanic Activity Report for 22 September-28 September 2021 (Continuing Activity)

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