The Volcanic Alert Level on Whakaari White Island has returned to 1 after lower levels of gas emissions were recorded since last Wednesday.
GNS Science duty volcanologist Agnes Mazot said two additional gas flights were performed since their last update, which showed lower gas emissions than recorded on June 26 when the alert was raised to level 2.
Further modelling of monitoring data and new data collected on the island also suggested a lower level of activity than last reported.
Mazot said the two additional gas flights detected 880 tons/day of sulphur dioxide on Friday, June 28 and 693 tons/day on Saturday, June 29, much lower than the measurement on June 26.
Further gas measurements would be undertaken as soon as conditions allowed, Mazot said.