The quake occurred 21 miles beneath the surface, the USGS said.
It was located 288 miles north-northwest of Saumlaki in the Tanimbar Islands, 289 miles south-southwest of Sorong, Indonesia and 377 miles northeast of Dili, East Timor.
There were no immediate warnings or reports of tsunamis generated by the quake.
Megyn Kelly: Santa Claus and Jesus are both white men
Penelope Cruz named 2013's 'Best Body' by Fitness magazine