The earthquake's epicenter, about 36 miles below the surface, was about 40 miles west-southwest of Panguna, Papua New Guinea, and about 398 miles west-northwest of Honiara, Solomon Islands.
The Joint Australian Tsunami Warning Center said the earthquake didn't pose a tsunami threat to the Australian mainland or territories, the Sydney Morning Herald reported.
AccuWeather.com said there were no reports of deaths or damages.
Chipotle plans first price increase in 3 years
Putin thinks Obama would save him if he were drowning