Thousands of people have reported feeling a moderate 4.9 earthquake near Waipukurau in Hawke's Bay.
Geonet says the quake was centred 5km north of the town at a depth of 36km.
It occurred just before 5pm.
Within 15 minutes more than 6000 people had registered their ratings of the quake on the Geonet website.
M4.6 quake causing moderate shaking near Waipukurau https://t.co/zq4w5xJhmy
— GeoNet (@geonet) September 4, 2021