White Island volcano (New Zealand): high heat flow continues
Fri, 20 Aug 2021, 04:3004:30 AM | BY: MARTIN
Near-continuous night-time glow at White Island volcano (image: GeoNet)
A gas measuring flight, thermal and visual observations from helicopter were made at the volcano by the local observatory last week to bolster currently degraded automated monitoring systems.
Gas and steam plumes from White Island volcano today (image: GeoNet)
These measurements and observations show that the maximum active vent temperatures remain high at around 520°C. The GeoNet New Zealand continues to observe a night glow in webcam images.
Sulfur dioxide (SO2) emissions and carbon dioxide emissions (CO2) continue at moderate levels, similar to those measured on 20 July.
Due to very steamy conditions at the vent, no visual observations of fresh lava at the surface have been confirmed. However, the monitoring network likely indicates magma intrusions at shallow level.
Volcanic Alert Level remains at level 2 and the Aviation Colour Code remains at Yellow.
Source: GeoNet New Zealand volcano activity update 19 August 2021
Wed, 18 Aug 2021, 06:00
Whakaari/White Island volcano (North Island, New Zealand) - Smithsonian / USGS Weekly Volcanic Activity Report for 18 August-24 August 2021 (New Activity / Unrest)
GeoNet maintained the Volcanic Alert Level at 2 and the Aviation Color Code at Yellow for Whakaari/White Island. A volcanic earthquake was recorded at 1900 on 19 August that continued for ten minutes; other seismic activity has been minor. Webcam images showed some incandescence during the night, which suggested that temperatures in the vent area were likely 500-600°C. ... Read all
Wed, 4 Aug 2021, 06:00
Whakaari/White Island volcano (North Island, New Zealand) - Smithsonian / USGS Weekly Volcanic Activity Report for 4 August-10 August 2021 (New Activity / Unrest)
GeoNet maintained the Volcanic Alert Level at 2 and the Aviation Color Code at Yellow for Whakaari/White Island based on continuing unrest and data collected during a recent overflight. In a 9 August report GeoNet noted that temperatures in the vent area remained high at 520 degrees Celsius; crater incandescence continued to be visible in webcams images at night. Moderate levels of carbon dioxide and sulfur dioxide emissions measured downwind of the volcano were similar to levels observed on 20 July. ... Read all