Huge earthquake rocks Mexico

6 of 11: A woman comforts her children outside a school at the Roma neighborhood after 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/Alexandre Meneghini) (AP Photo/ Alexandre Meneghini)

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