Two major earthquakes have hit Samoa tonight.
A series of strong earthquakes struck off Samoa and Tonga tonight just hours after a major tremor rattled Papua New Guinea to the west.
The US Geological Survey said the latest quake measured 6.8 on the Richter Scale.
Earlier, a quake of magnitude 6.3 struck off Samoa.
The epicentre was measured 124 km west-southwest of the capital Apia, at a depth of 116 kms.
Residents in Samoa said there were no reports of damage and the Pacific Tsunami Warning Centre said there was no tsunami threat.
The quakes came just hours after a major 7.7 quake struck of the coast of Papua New Guinea coast, near the town of Rabaul, in the country's northeast.
A tsunami warning was issued soon after the PNG quake, though the Pacific Tsunami Warning Centre said no destructive, Pacific-wide tsunami was expected.