Monitoring data and observations from recent monitoring flights at Whakaari/White Island have confirmed the level of volcanic unrest remains low, GNS Science says.
The temperature of the emitted gas and steam has continued to decline, duty volcanologist Brad Scott said in a volcanic activity bulletin.
A maximum of 111 degrees Celcius was measured on April 27 observation flight, down from 288 degrees Celcius on March 16.
Geysering activity was observed in one of the water-saturated vents during the same observation flight.
No minor or dilute volcanic ash emissions have been observed since late February.