A small tsunami wave has hit the Chatham Islands following an 8.3 magnitude quake off the coast of Chile.
The sea surge, according to GeoNet, was around 20-100cm high and hit around 11:50pm.
Some Chathams residents living close to the shore have self-evacuated.
The east coast of New Zealand remains on tsunami alert and tsunami gauges for East Cape, Gisborne and Castlepoint have shown minor fluctuations.
Civil Defence warns tsunami activity may continue for several hours and the threat must be regarded as real until the warning is cancelled.
At least eight people have been killed and many injured in Chile, where terrified residents rushed out onto the streets in the capital Santiago and beyond, as far away as Argentina.
Tsunami waves up to 4.5 metres high have inundated some coastal towns and more than a million people have been evacuated.
Houses collapsed and power was knocked out in the town of Illapel, 280km north of Santiago, and coalminers were evacuated from the country's mines as a precaution.
The Ministry of Civil Defence is telling people to follow this advice:
1. Stay out of the water (sea, rivers and estuaries, including boating activities)
2. Stay off beaches and shore areas
3. Do not go sightseeing
4. Share this information with family, neighbours and friends
5. Listen to the radio and/or TV for updates
6. Follow instructions of local civil defence authorities
Cazanoticias captaron impactantes imágenes de cómo quedó mall de La Serena tras terremoto. ► http://bit.ly/1JcsI3BPosted by Chilevisión on Wednesday, 16 September 2015
New Zealander Natalia Bogle lives in Chile's capital Santiago and told 3 News the quake was terrifying.
"I was definitely scared, I'm not going to lie. It was quite long, that was what I noticed. It was scary," Bogle said.
"I don't deal well with earthquakes so I will say personally I did well not actually fearing for my life…You think in that moment the earthquake might not ever stop."