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White Island volcano (New Zealand): volcanic unrest continues, summit vent temperature rises

Tue, 14 Dec 2021, 05:17
05:17 AM | BY: MARTIN
Summit vent area at White Island volcano on 10 December (image: GeoNet)
Summit vent area at White Island volcano on 10 December (image: GeoNet)
The GeoNet volcano observatory did their regular visual and temperature measurement flights last week.
Summit vent area maximum temperature reached 516°C. During September-November 2021 temperatures ranged from 202°C to 264°C. Temperatures over 500°C were last measured in July-August 2021.
Small amounts of ash continue to be observed. These ash deposits remain limited to areas close to the active vents. Further intermittent ash emissions may continue to occur. There was no evidence of further ash or liquid emissions from the vent near the base of the 2019 landslide area. Gas emissions appeared lower but have not been quantified since 18 November 2021.
Volcanic Alert Level remains at level 2 and the Aviation Colour Code remains at Yellow.
Source: GeoNet New Zealand volcano activity update 13 December 2021

Previous news

Tue, 23 Nov 2021, 07:19

White Island volcano (New Zealand): ongoing volcanic unrest, gas emissions decreased

Summit vent area at White Island volcano (image: GeoNet)
The GeoNet volcano observatory did their weekly visual, gas and temperature measurement flights last week. ... Read all
Wed, 17 Nov 2021, 06:00

Whakaari/White Island volcano (North Island, New Zealand) - Smithsonian / USGS Weekly Volcanic Activity Report for 17 November-23 November 2021 (Continuing Activity)

GeoNet reported results from an 18 November overflight of Whakaari/White Island, noting a decrease in gas emissions and the lake level. Gas measurements showed that sulfur dioxide emissions had decreased from 681 tons per day recorded on 2 November to 484 tons per day. Additionally, both carbon dioxide and hydrogen sulfide decreased from 2712 to 1416 tons per day and from 38 to 19 tons per day, respectively. ... Read all
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White Island volcano
stratovolcano 321 m / 1,053 ft
New Zealand, -37.52°S / 177.18°E
Current status: minor activity or eruption warning (3 out of 5) White Island volcano eruptions:
2019, 2016, 2013, 2012, 2001, 1998-2000, 1998, 1995, 1986-94, 1983-84, 1976-82, 1974, 1971, 1971, 1970, 1969, 1968-69, 1966-67, 1962, 1959, 1958, 1957, 1955, 1947, 1933, 1930, 1928, 1926, 1924, 1922, 1909, 1908 (?), 1886?,1886, 1885 (?), 1885, 1856 (?), 1836, 1826
Typical eruption style
Explosive (in historic time: frequent small phreatic and phreatomagmatic eruptions)

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