Nearly 4000 people from Christchurch to the Bay of Plenty have reported feeling a 'strong' 4.7 magnitude earthquake centred south-east of the South Island town of Seddon.
Updated information from GeoNet shows the quake struck 15 kilometres south east of Seddon at 6.14pm at a depth of 15 kilometres, shallower than the 33 km depth measured initially.
The quake was reported felt by 3773 people from the Christchurch area to the Tauranga district and west to New Plymouth, including the Nelson and Wellington regions.
Three people in Waikato reported it as 'extreme', though about two thirds described it as light or weak.
GNS classified it as strong.
The quake is among more than 1300 in the last week and nearly 11,000 in the last month in New Zealand, the biggest being the 7.8 magnitude Kaikoura quake on November 14.