Over the past two weeks, webcam images have consistently shown a steam and gas plume emerging from the active vent. However, confirming the presence of ash has proven difficult. During this same period, our colleagues at MetService have not detected ash in the plume using satellite imagery. This suggests that if ash is still being emitted, it is occurring at a lower intensity than in previous weeks.
Due to poor weather conditions, it was unable to carry out scheduled gas and observation flights, limiting ability to directly assess the state of the active vent or confirm any substantial ash emissions. Satellite data has not indicated any significant concentrations of ash in the atmosphere during this time, although small amounts of ash may go undetected. Sulphur dioxide (SO₂) gas emissions from the active vent at Whakaari/White Island continue at moderate levels.
As soon as conditions permit, we plan to conduct observation and gas measurement flights. These will provide updated visual assessments of the vent’s morphology and activity, as well as measurements of gas flux and vent temperatures. In the meantime, satellite monitoring continues to track SO₂ emissions. The Te Kaha and Whakatāne webcams remain valuable sources for observing plume activity, although visibility can be affected by local weather conditions along the Bay of Plenty coast.
Overall, steam and gas emissions appear steady, continuing the trend observed over recent months. The level of volcanic ash may be declining. However, in the absence of on-island monitoring, rapid changes in activity cannot be ruled out. Current observations are consistent with minor but possibly decreasing eruptive activity. The Volcanic Alert Level remains at 3 and the Aviation Colour Code at Orange.
Source: Geonet New Zealand volcano activity update 27 May 2025
respect nature & human rights