HONG KONG, Sept. 15 (Xinhua) -- A magnitude-5.6 earthquake jolted 167km E of Nago, Japan at 00:08:20 GMT on Saturday, the U.S. Geological Survey said.

The epicenter, with a depth of 5.85 km, was initially determined to be at 26.7398 degrees north latitude and 129.647 degrees east longitude.