BEIJING, Spept. 22 (Xinhua) -- An earthquake measuring 5.5 on the Richter scale jolted 107km SW of El Dorado, Mexico at 05:33:48 GMT on Friday, the U.S. Geological Survey said.

The epicenter, with a depth of 10.0 km, was initially determined to be at 23.7665 degrees north latitude and 108.2252 degrees west longitude.