Powerful series of Quakes hit NZ
 

A series of quakes, kicked off by a 6.6-7.8 (depending on who you believe) quake have been hitting NZ. A Tsunami warning has been issued.

New Zealand earthquake: Powerful tremor hits South Island - BBC News

Currently seeing aftershocks set off up and down both North and South Islands, about every 2 mins.

GeoNet - Quakes

GeoNet - Tsunami

Most people are reporting in with continual 'rolling' quakes, but not too much damage.

Re: Powerful series of Quakes hit NZ
 

Yup. That's a good description.

Strong quake which was long and extremely shaky followed by continuous shakes.