The quake, which was 379 kms (235 miles) deep, struck 110 km (68 miles) northeast of the town of Taron, said the USGS.
There was no tsunami warning.
It was followed by a second, 6.8 magnitude earthquake on the country`s New Britain island, at 30 km (19 miles) northeast of the town of Kandrian at a depth of 62 km (39 miles), the USGS said.
(Uu.H-AK)
Editor: Fitri Supratiwi
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