Workers and residents gather at the Angel de la Independencia square after evacuating buildings during a earthquake felt in Mexico City Tuesday March 20, 2012. A strong, long earthquake with epicenter in Guerrero state shook central southern Mexico on Tuesday, swaying buildings in Mexico City and sending frightened workers and residents into the streets. (AP Photo/Dario Lopez-Mills)
Read the article: UPDATE: Strong, lengthy 7.6 quake, aftershock shakes parts of Mexico
