In June, a swarm of more than 80 earthquakes were recorded in Hawke’s Bay and Te Tairāwhiti.
At the time, GNS Science said such swarms were “not uncommon” in the area.
“It’s quite common to have this cluster of increased seismicity in Wairoa and also the whole east coast,” GNS seismic duty officer Elisabetta D’Anastasio said.