A magnitude 7.5 earthquake centred north of Christchurch has jolted New Zealand and triggered a two-metre Tsunami.
The severe quake, located 15 km north-east of Culverden at a depth of 15km, struck just after midnight on Sunday and was felt throughout the country.
A two-metre tsunami has been generated in response to the earthquake and the first wave arrived at Kaikoura on the South Island just before 2am on Monday local time, according to the NZ Ministry of Civil Defence and Emergency Management.
The Civil Defence has warned further waves will arrive at Chatham islands immediately and people on the country's east coast have been ordered to move to high ground for the next several hours.
The quake, located 20km south east of Hanmer Springs at a depth of 16km, was felt by the entire country and set off a series of aftershocks, the largest being a 6.2 magnitude quake near Wellington
Waves between three to five metres are expected between Marlborough Peninsula near Wellington and Banks Peninsula, just south of Christchurch, according to Civil Defence.
The quake set of a series of aftershocks around the country, the largest of which was felt in Wellington on the south end of the North Island.
At about 12.40, the Wellington area was hit with a 6.2 magnitude earthquake.
A magnitude 4.9 earthquake moved struck the centre of the north Island at about 10 minutes later.
Families warned to flee New Zealand coast 'immediately' over tsunami sparked by 7.8-magnitude earthquake