ANTOFOGASTA, Chile — A strong earthquake shook northern Chile early Thursday, shattering windows, triggering small landslides and briefly cutting off electric power and phone service.
The government said no injuries were reported from the 40-second temblor at 6:17 a.m.
The quake sent many residents into the streets of Antofogasta, a coastal city 850 miles north of the capital of Santiago.
Mario Pardo, head of the seismological institute of the University of Chile in Santiago, said the earthquake measured more than 7 on the Richter scale. Its epicenter was located far underground about 60 miles south of Antofogasta, in an uninhabited desert region.
Richter readings of 5.5 were recorded in Antofogasta and in Calama and Chuquicamata, about 100 miles to the northeast.
Chuquicamata is the site of the world's largest open-pit copper mine. Several minor landslides occurred at the government-run mine, but operations were not affected, officials said.