MEXICO CITY, Mexico -- An earthquake rocked central and western Mexico on Friday, forcing office workers and residents to evacuate buildings in Mexico City.

The tremor, measuring 5.9 magnitude, was centered in western Michoacan state. It was not immediately known whether there were any casualties or serious damage to buildings.

The U.S. National Earthquake Information Center in Colorado gave a preliminary magnitude estimate of 5.9.

"It was very short, but it felt really strong," said 74-year-old Juana Ruiz in Mexico City's historic center, which was devastated by a massive earthquake in 1985