SANTIAGO (Reuters) - A magnitude 6.6 earthquake struck off the coast of Chile on Thursday, the United States Geological Survey reported.
The quake was centered 35 miles southwest of Coquimbo and at a depth of 6.6 miles, the USGS said.
There were no initial reports of injuries or damage, though the quake caused buildings in the capital Santiago to sway. Mining operations in Chile, the world's No. 1 copper producer, also were not affected, according to initial reports.
The Hawaii-based Pacific Tsunami Warning Center said the quake was not expected to cause a destructive widespread tsunami, though it could generate local tsunamis that posed a threat along coasts within 62 miles of the epicenter.
Seismically-active Chile was battered in February 2010 by an 8.8 magnitude quake and ensuing tsunami, which caused billions in damage and killed hundreds.