behravesh20120118021340403A strong quake struck off northern Chile on Sunday evening, triggering a preventive evacuation of part of the coastal area but apparently not causing any injuries or damage to the country’s crucial copper mines. The magnitude 6.7 quake, originally measured as a 7.0, was centered 37 miles west-northwest of Iquique and hit at a depth of 12.4 miles, the U.S. Geological Survey said. The ONEMI emergency office said that preliminarily no damage or injuries had been reported. Chile’s massive mines, clustered in the mineral-rich North, appeared to be fine. Collahuasi, a partnership between Glencore Xstrata and Anglo American, located in the area, said operations were normal. The Pacific Tsunami Warning Center said there was no tsunami expected. But Chile’s navy said there was a possibility of a minor tsunami between the northern towns of Arica and Tocopilla, so authorities ordered a preventive evacuation of part of the coastline after the quake. Local media showed footage of people in Iquique calmly evacuating. REUTERS