Magnitude 6.3 earthquake strikes off PNG - USGS

SINGAPORE (Reuters) - A magnitude 6.3 earthquake struck off the Papua New Guinea island of New Britain on Monday, the U.S. Geological Survey (USGS) said. The quake struck 6 miles (9 km), northwest of the town of Rabaul, on the northeast tip of New Britain island, it said. There were no immediate reports of any damage or casualties. (Writing by Robert Birsel; Editing by Michael Perry)