by The Associated Press

NPR.org, April 27, 2009 · A powerful earthquake rocked tall buildings in Mexico City Monday, sending office workers down stairways into the streets.

The 6.0-magnitude quake was centered near Chilpancingo, about 130 miles (210 kilometers) southwest of Mexico City or 50 miles (80 kilometers) from the resort of Acapulco, according to the U.S. Geological Survey.

Televisa television network quoted Mexico City officials saying there were no immediate reports of damage or injuries.

Mexico's capital is already at the center of a swine flu outbreak that is blamed for at least 20 deaths.

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