An earthquake of magnitude 6.4 struck south of Tonga, the European Mediterranean Seismological Centre (EMSC) reported on Sunday.
The USGS reported the quake struck at 7.16pm and recorded it as a preliminary magnitude 6.0.
The Pacific Tsunami warning centre said based on the available data, there is no tsunami threat at this stage.
The quake was at a depth of 40km, EMSC said. EMSC had first reported a magnitude of 6.1 for the earthquake.
- Reuters / RNZ