More strong aftershocks have rattled the East Coast with a 5.7 tremor among the shakes in the early hours of the morning.
The area was hit by a 7.1-magnitude quake off the coast of Te Araroa on Friday morning and hundreds of tremors have hit the area since then.
GNS Science has recorded more than two dozen significant shakes in the past 12 hours - the largest a 5.7 tremor recorded at 3.19am, centred 95km out to sea north-east of Te Araroa.
It was felt throughout the North Island including Wellington and Auckland.
Just after 5am, a 5.3 tremor hit at the same spot off the coast, at a depth of 19km.
GNS seismologist Caroline Little said this morning's earthquakes are part of the forecast aftershock pattern, and more small tremors should be expected.
There was a 50 percent chance of a magnitude 6- 6.9 earthquake striking the area over the next month, and a 7 percent chance of a magnitude 7 or greater, she said.
"So those numbers are decreasing as time goes on, but there's definitely a small possibility of a bigger quake."
Te Araroa resident Aomihi Cook told Morning Report said people were bracing themselves every day for further earthquakes.
She said residents had been organising their emergency supplies since Friday's earthquake which had prompted a tsunami warning.
"Precious photos, all those kinds of things ... getting stuff in their cars - food for the kids, water - people are braced every day.
"You never know when the big one will come."
Police and fire service have had no reports of damage from the latest wave of aftershocks.