There is no tsunami threat to NZ from the earthquake.

A magnitude 7.8 earthquake has shaken Fiji, hitting 101km east-southeast of Suva, according to the US Geological Survey.

That measurement was revised from an initial reading of 8.1.

The quake hit at 3.49am on Friday.

It occurred at a depth of about 608km.

The Ministry of Civil Defence and Emergency Management said there was no tsunami threat to NZ.

There is no tsunami threat to New Zealand following the 8.1M FIJI earthquake. — MCDEM (@NZcivildefence) September 6, 2018

The Pacific Tsunami Warning Center said no Pacific-wide tsunami was expected either.