A second strong earthquake has shaken parts of New Zealand.
A magnitude 4.5 earthquake struck at 3.20pm (1320 AEST) on Friday, 35km east of Seddon and 15km deep.
It followed a 5.7 quake which hit around the same area just after 9am, at a depth of 16km.
Police said there had been no reports of damage from either tremor.
More than 7500 felt the 5.7 quake which GeoNet categorised as of severe intensity.
The quake was felt from Christchurch to Taranaki and in other parts of the central North Island.
“The fact that it struck in the Cook Strait meant that we were spared the full force of the earthquake,” GeoNet said.
The 4.5, described as strong, is one of a number of aftershocks on Friday.
The aftershocks were likely to continue for 24 hours, GeoNet said.