Aftershocks of more than magnitude 5 continue to rock the East Cape following a 7.1 quake in the area.
A magnitude 7.1 earthquake struck off the east coast of the North Island at 4:37am on Friday, generating a 30cm wave and a tsunami warning. A magnitude 6.2 shake followed soon after.
On Sunday morning, strong tremors were still rattling the East Cape, with about a dozen aftershocks of magnitude 3 or greater striking overnight.
The largest was a 5.1 that hit at about 1:30am, centred five kilometres north-west of Ruatoria at a depth of 35km.
Scientists at GNS Science say aftershocks will continue for weeks or months.
"It's early days. I wouldn't say it's over," seismologist Caroline Holden said.
The Earthquake Commission, which covers the first $100,000 of damage claims for homeowners with insurance, said it had received 48 claims by Friday afternoon but did not have a damage cost yet.
The 110-year-old homestead at Puketiti Station, inland from Te Puia Springs, lost its chimney in the quake, the Gisborne Herald reports.