Latest news & updates from White Island
White Island volcano (New Zealand): year-long monitoring reveals declining vent temperatures
Wed, 3 Feb 2021, 07:5107:51 AM | BY: MARTIN
Over the last year, a series of thermal infrared images have been regularly collected by helicopter to observe the temperature of steam and gas vents as reported GNS volcanological observatory. Temperatures have shown a gradual decline since the December 2019 eruption, from over 700 °C in February 2020 to 300 °C on 21 January 2021. The gas emission temperatures are now similar to temperatures measured in July 2018.
Gas emissions on the crater floor at White Island volcano today (image: GNS)
During January 2021, GNS Science continued monitoring of Whakaari/White Island by observation flights and measurement of gas emission rates, and with automatic earthquake, camera and ground deformation observations. Recent observations confirmed no evidence of recent eruptive activity, or signs of collapse in or near the active vents. There is little water ponded on the floor of the 1978/90 Crater.
Volcanic steam and gas continue to be emitted from the active vents and lava extrusions in the area that erupted in December last year. The most recent observations are some of the lowest gas emissions measured since the 2019 eruption and are now close to those observed in early-2019.
The Volcanic Alert Level remains at 1 and the Aviation Colour Code remains at Green.
Source: GNS New Zealand volcano activity update 3 February 2021
Wed, 30 Dec 2020, 09:50
A series of minor steam explosions from the active vent occurred at the volcano at about 15:00 local time yesterday detected by seismic instruments as the volcano observatory GeoNet reported. ... read all
Mon, 7 Dec 2020, 08:27
The alert level for the volcano was lowered to "green", as an observation flight on 2 December confirmed that ash emissions from the volcano has now stopped. ... read all
Wed, 2 Dec 2020, 09:07
Based on camera footage, aerial observations and gas measurement flights, the amount of ash in the plume appears to have diminished over the last week and is no longer present in the near-persistent steam and gas plume as GeoNet reported. Over the past three weeks, ash has been emitted from the main vent at the back of the lake at Whakaari/White Island. This is consistent with the lack of ash being detected on recent MetService satellite images. The plume is now back to its light colour, composed of steam and volcanic gas, with little to no ash. ... read all
Tue, 24 Nov 2020, 16:46
Tue, 24 Nov 2020, 07:15