BEIJING, Dec. 6 (Xinhua) -- An earthquake with a magnitude of 5.1 jolted 104 km NW of Alianza Cristiana, Peru at 0630 GMT on Monday, the U.S. Geological Survey said.

The epicenter, with a depth of 10.0 km, was initially determined to be at 2.8247 degrees south latitude and 77.12 degrees west longitude.