A swarm of small earthquakes were recorded in Rotorua overnight.
The GeoNet seismometer network in the Rotorua area recorded a number of small quakes near Lake Rotomahana.
GeoNet was able to locate 19 of them. Their magnitudes ranged from magnitude 1.4 to 2.5, while the depths ranged between 9 and 5km. There were also many too small to be located.
Volcanologist Brad Scott said this was very typical of the earthquake activity in this area.
Swarms are often characterised by no one main or large quake, with many being about the same size, he said.