Multiple mid-sized earthquakes were recorded near White Island in the Bay of Plenty overnight.
The largest of the five quakes was a magnitude 4.1, which occurred around 10km east of the island around 11.30pm.
White Island is an active volcano situated around 50km from the Bay of Plenty coast.
GeoNet has the Island on a level 1 alert, with a minor risk of volcanic unrest.
GeoNet reported four other shakes within two hours of this, ranging from magnitude 2.5 to magnitude 3.4.