A strong 6.2-magnitdue earthquake struck beneath the Pacific off New Zealand's Kermadec Islands on Sunday, US geologists said, but no tsunami warning was issued.
The remote offshore quake hit at 01:42 am (1742 GMT) at a depth of 28 kilometres (17 miles), 44 kilometres east southeast of Raoul Island and 937 kilometres south southwest of Tonga, the United States Geographical Survey said.
The Pacific Tsunami Warning Center did not issue a tsunami alert for the area, part of the Pacific's "Ring of Fire", a highly active tectonic zone that frequently experiences earthquakes.
The initial quake was followed five minutes later by a 5.2-magnitude aftershock in a similar area.
The remote Kermadec Islands are New Zealand's northern most islands, 1,100 kilometres north of Auckland.