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Ruapehu volcano (North Island, New Zealand) - Smithsonian / USGS Weekly Volcanic Activity Report for 24 April-30 April 2019 (Continuing Activity)

Wed, 24 Apr 2019, 06:00
06:00 AM | BY: VN
GeoNet reported that the period of high water temperatures at Ruapehu's summit Crater Lake along with elevated tremor levels was over. Tremor levels began to decline on 16 April and by 29 April was described as weak. The lake water reached a peak temperature of 44 degrees Celsius on 19 April and then began cooling; the temperature was 39 degrees Celsius by 29 April.
The report noted that the probability of an eruption during a heating cycle had decreased with the decreasing activity. 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, 2019. Report on Ruapehu. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 24 April-30 April 2019. Smithsonian Institution and US Geological Survey.

Previous news

Wed, 17 Apr 2019, 22:10

Ruapehu volcano (New Zealand): increased crater lake temerature and seismic activity

The Ruapehu crater lake during winter. (image: GNS Science)
Another phase of increased crater lake temperatures has been recorded at the Te Wai ā-moe (Crater Lake) Mt Ruapehu in combination with moderate levels of volcanic tremor. ... Read all
Wed, 10 Apr 2019, 06:00

Ruapehu volcano (North Island, New Zealand) - Smithsonian / USGS Weekly Volcanic Activity Report for 10 April-16 April 2019 (Continuing Activity)

GeoNet reported that, at least for the last 10 years of continuous lake-temperature monitoring, heating cycles at Ruapehu's summit Crater Lake have occurred over periods of about 12 months with temperatures ranging from 15 to 45 degrees Celsius. However, the temperature remained elevated at 30 degrees for a period of six months starting in September 2018. GeoNet noted that during the previous two weeks the lake temperature increased further, at a rate of around a half of a degree per day, to 42 degrees on 9 April. ... Read all
Show more
Ruapehu volcano sat by (c) Google Earth View
Ruapehu volcano sat by (c) Google Earth View
Ruapehu volcano
Stratovolcano 2797 m / 9,176 ft
North Island (New Zealand), -39.28°S / 175.57°E
Current status: normal or dormant (1 out of 5) Ruapehu volcano eruptions:

Typical eruption style
Mildly explosive, formation of lahars
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