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White Island volcano (New Zealand): volcanic unrest continues, increased gas emissions

Di, 9. Nov 2021, 02:18
02:18 AM | VON: MARTIN
Increased gas emissions from White Island volcano (image: GeoNet)
Increased gas emissions from White Island volcano (image: GeoNet)
The GeoNet observatory undertook visual, gas and temperature measurement flights last week as published in the latest bulletin.
Gas measurements confirmed an elevation of volcanic gases since 14 October. Sulfur dioxide (SO2) emissions increased from 267 to 681 tonnes/day. Carbon dioxide (CO2) emissions increased from 757 to 2712 tonnes/day as well as hydrogen sulfide (H2S) emission from 10 to 38 tonnes/day.
The summit vent area temperature was measured in the range between 252 °C to 202 °C during Sep-Oct while in Jul-Aug were temperatures about 500 °C-600 °C.
The crater lake level is higher than in late October due to torrential rainfall.
Small ash emissions were observed, but the recent minor ash deposits are still occurring in the area of active vents.
The low-level seismic activity continues associated with low-frequency quakes.
Volcanic Alert Level remains at level 2 and the Aviation Colour Code remains at Yellow.
Source: GeoNet New Zealand volcano activity update 8 November 2021

Vorherige Nachrichten

Mi, 3. Nov 2021, 06:00

Whakaari/White Island volcano (North Island, New Zealand) - Smithsonian / USGS Weekly Volcanic Activity Report for 3 November-9 November 2021 (Continuing Activity)

On 9 November GeoNet reported results from a recent overflight of Whakaari/White Island. Gas measurements showed that sulfur dioxide emissions had increased from 267 tons per day recorded on 14 October to 681 tons per day. Additionally, carbon dioxide increased from 757 to 2712 tons per day and hydrogen sulfide increased from 10 to 38 tons per day. ... Read all
Mi, 13. Okt 2021, 06:00

Whakaari/White Island volcano (North Island, New Zealand) - Smithsonian / USGS Weekly Volcanic Activity Report for 13 October-19 October 2021 (Continuing Activity)

On 18 October GeoNet reported results from a recent overflight of Whakaari/White Island. Gas measurements showed that sulfur dioxide emissions had decreased from 520 tons per day recorded at the end of September to 267 tons per day. Temperatures in the main vent area were as high as 220 degrees Celsius, similar to temperatures measure two weeks prior. ... Read all
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Schichtvulkan 321 m / 1,053 ft
Neuseeland, -37.52°S / 177.18°E
Aktueller Status: unruhig (2 von 5) Ausbrüche des White Island:
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
Typische Aktivität
Explosive (in historic time: frequent small phreatic and phreatomagmatic eruptions)
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