By Heather Walsh
Chile, the world's biggest copper producer, was shaken by an earthquake yesterday, the U.S. Geological Survey said.
The quake had a magnitude of 5.6 and hit 35 kilometers (20 miles) east of the city of Iquique in the region of Tarapaca at 4:51 p.m. local time, the USGS said on its Web site.
The temblor caused power outages in parts of the city, according to the Web site of the state-run Chilean Emergency Office. No injuries were reported, the office said.