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White Island volcano (New Zealand): ash emissions continue at reduced levels, night-time glow continues

Tue, 7 Sep 2021, 04:23
04:23 AM | BY: MARTIN
Steam emissions continue from the vent at the volcano (image: GeoNet)
Steam emissions continue from the vent at the volcano (image: GeoNet)
Continuing ash emissions observed at the volcano on the last week, have now decreased as published by the GeoNet New Zealand.
The constant glow is visible from the summit crater at night indicating high-temperature gas emissions.
Satellite based ground deformation measurements continue to show a broad region of subsidence around the active vents. This may be attributed to the release of pressurised gas at depth which has fed the recently observed plumes. It is likely that weak wall fragments fall into the gas stream through the active vents, leading to the reported ash emissions.
Volcanic Alert Level remains at level 2 and the Aviation Colour Code remains at Yellow.
Source: GeoNet New Zealand volcano activity update 6 September 2021

Previous news

Fri, 3 Sep 2021, 03:00

White Island volcano (New Zealand): continuing ash emissions

Ash emissions from White Island volcano as visible in the webcam screenshot (image: GeoNet)
The GeoNet New Zealand reported that minor ash emissions have been observed by surveillance cameras starting around 06:50 local time this morning. ... Read all
Wed, 1 Sep 2021, 06:00

Whakaari/White Island volcano (North Island, New Zealand) - Smithsonian / USGS Weekly Volcanic Activity Report for 1 September-7 September 2021 (New Activity / Unrest)

GeoNet reported that beginning at 0630 on 2 September minor ash emissions from the active vent at Whakaari/White Island were visible in webcam images. The emissions were observed in satellite images drifting SW and reaching the Bay of Plenty coastline. GeoNet noted that short episodes of minor ash emissions had been recorded during the previous few weeks, though none were as sustained as the 2 September episode. ... 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: restless (2 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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