A large earthquake located to the south of Raoul Island has triggered several quake alerts in New Zealand.
The shallow magnitude 6.3 quake, which hit at 10.24am at a depth of 33km, was centred just south of Raoul Island - hundreds of kilometres north of New Zealand, GNS said.
The jolt triggered two false quake recordings in New Zealand's North Island around the same time.
A spokesman from GNS confirmed the initial data showing quakes near Pongaroa and on the East Cape had occurred were wrong.