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Whakaari/White Island (New Zealand) - Smithsonian / USGS Weekly Volcanic Activity Report for 8 December-14 December 2021

Wed, 15 Dec 2021, 06:42
06:42 AM | BY: VN
GeoNet reported results from a 10 December overflight of Whakaari/White Island, noting a significant increase of temperatures at the active vent area. Temperatures in the main vent area were as high as 516 degrees Celsius, an increase from the range of 202-264 degrees Celsius measured in both September and November; temperatures over 500 degrees Celsius were last recorded during July-August. Very minor ash emissions continued to be visible with deposits only extending around the active vents.
Gas emissions had possibly decreased, though measurements had not been taken since 18 November. The water in the lake has receded likely due to recent weather conditions. The Volcanic Alert Level remained at 2 and the Aviation Color Code remained at Yellow.

Source: GeoNet
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From: Smithsonian / USGS Weekly Volcanic Activity Report

Previous news

Tue, 14 Dec 2021, 05:17

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

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. ... Read all
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
Show more
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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