A strong earthquake has struck in the ocean near Papua New Guinea, but there have been no reports of injury or damage and no tsunami warnings have been issued.

The U.S. Geological Survey says the 6.2 magnitude quake struck Thursday night 6.2 miles (10 kilometers) below the surface. It was centered 150 miles (245 kilometers) north of Wewak, Papua New Guinea.

The archipelago nation is part of the Pacific Ocean's "ring of fire" where earthquakes of this magnitude are fairly common and rarely cause serious damage.