The quake struck near New Britain, at a depth of 33 km. (Representational)
A magnitude 6.4 earthquake struck off Papua New Guinea on Monday, the U.S. Geological Survey said, in an area frequently struck by quakes.
The quake struck 26 km north of Kandrian, in New Britain, at a depth of 33 km.
There were no immediate reports of damage.
Nearby Indonesia's Moluccas islands were hit by scores of aftershocks on Monday after an earthquake killed at least two people, prompting hundreds of people to flee their homes.
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