7.1-magnitude quake hits 37km NW of Bulolo, Papua New Guinea -- USGS

NEW YORK, May 6 (Xinhua) -- A 7.1-magnitude earthquake jolted 37 km NW of Bulolo, Papua New Guinea at 21:19:37 GMT on Monday, the U.S. Geological Survey said.

The epicenter, with a depth of 137.0 km, was initially determined to be at 6.975 degrees south latitude and 146.401 degrees east longitude.