6.0-magnitude quake hits 111km SW of Porgera, Papua New Guinea -- USGS

HONG KONG, Feb. 28 (Xinhua) -- An earthquake measuring 6.0 on the Richter scale jolted 111km SW of Porgera, Papua New Guinea at 02:45:44 GMT on Wednesday, the U.S. Geological Survey said.

The epicenter, with a depth of 10.0 km, was initially determined to be at 6.1716 degrees south latitude and 142.4749 degrees east longitude.