UPDATE: There has been no escalation in the level of volcanic activity on White Island since the eruption this morning.
GNS duty volcanologist Steve Sherburn said their monitoring data showed seismic activity remained low, though some of the camera were being affected by ash and steam.
The ash was visible on a MetService satellite image, which showed a plume extending offshore.
Mr Sherburn said any ash fall would follow wind direction and was likely to be blown offshore over the next day.
He said GNS would review the situation tomorrow morning unless changed occurred over night.