HONG KONG, Dec. 8 (Xinhua) -- An earthquake measuring 5.1 on the Richter scale jolted 157km W of Panguna, Papua New Guinea at 01:55:35 Hong Kong Time on Monday (17:55:35 GMT), the U.S. Geological Survey said.
The epicenter, with a depth of 54.9 km, was initially determined to be at 6.5027 degrees south latitude and 154.0728 degrees east longitude.