Volcanic Activity Bulletins

Volcano Activity Bulletins (VABs) are New Zealand's official source of volcano status information including the current Volcanic Alert Level (VAL). They are issued on an as needed basis summarising the volcano status and recent events. They can indicate if activity is increasing, decreasing, or in a steady state. They may contain forecasts, highlight developing, or expected problems.
If you’d like to be notified as soon as we issue a new bulletin, our social media channels and the GeoNet app will keep you up-to-date.


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A strong M5.6 earthquake occurred beneath Lake Taupō on 30 November. The earthquake was widely felt, causing minor damage and a small tsunami in the lake. Numerous aftershocks have been recorded, with many felt locally. The activity is consistent with ongoing minor volcanic unrest at Taupō volcano. The Volcanic Alert Level remains at 1.


Minor volcanic unrest continues at Taupō Volcano, as shown by continued small earthquakes and ground deformation. The Volcanic Alert Level remains at 1 (minor volcanic unrest).


An observation flight confirms the active vents are continuing to emit a moderate steam and gas plume. Rare periods of ash emission were noted during clear weather over the last 2 weeks. The Volcanic Alert Level remains at 2.


Minor volcanic unrest continues at Taupō Volcano, with ongoing earthquakes and ground deformation. The Volcanic Alert Level for Taupō Volcano remains at 1 (minor volcanic unrest).


Observation and gas flights have confirmed the active vent is continuing to emit a very vigorous steam and gas plume with a temperature of about 165 ºC. As the vent walls fail some minor ash emissions occur. Several periods of ash emission were noted during clear weather last week. The Volcanic Alert Level remains at 2.


Observational data for Mt Ruapehu indicates the level of volcanic unrest activity remains low. Volcanic tremor levels are at typical background levels, lake chemistry and gas data show no changes, and the lake temperature remains warm. The Volcanic Alert Level remains at Level 1 and the Aviation Colour Code remains Green.


Web camera images from Whakaari/White Island have shown that the minor, passive ash emission from the crater on Sunday 18 September 2022 has not persisted. The strong sulphur dioxide (SO2) gas signal associated with that ash has not been seen since. The Volcanic Alert Level remains at 2.


Minor volcanic unrest continues at Taupō Volcano, with ongoing earthquakes and ground deformation. The Volcanic Alert Level for Taupō Volcano remains at 1 (minor volcanic unrest).


The Volcanic Alert Level for Taupō Volcano is raised to Volcanic Alert Level 1 (minor volcanic unrest). The minor volcanic unrest is causing the ongoing earthquakes and ground deformation at Taupō Volcano.


Web camera images from Whakaari/White Island showed minor ash emission occurred in the crater on Sunday 18 September 2022. Ash was not observed beyond the island, but the overall steam plume could be seen from the Bay of Plenty coast. A strong SO2 gas signal associated with that plume was also detected by satellite on Sunday. No significant ash was observed today and the Volcanic Alert Level remains at 2.