An earthquake of magnitude 7.6 struck off Tonga, the United States Geological Survey said.
The quake struck at 4am NZT, with its epicentre at a distance of 95km west-north-west of Hihifo, Tonga, the USGS said.
It was at a depth of 210km.
![A magnitude 7.6 struck 95km from Hihifo, Tonga on Thursday, at a depth of 210km. Photo / USGS](https://www.nzherald.co.nz/resizer/v2/2XV44Y757VFCZMLPAH46AYOYX4.jpg?auth=a1ed00682a6b965b15bbf4fab9078fc1898a2a4ade5747af6dbbb217cedc3d3e&width=16&height=10&quality=70&smart=true)
The US Tsunami Warning System said there was no tsunami warning after the earthquake.