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April 20, 2012
Dieu Chery photo

A plume of ash and steam rises from Popocatepetl volcano as seen from San Nicolas, Mexico, Friday, April 20, 2012. Mexico’s Popocatepetl volcano is continuing to spout gases and hot rock fragments and it is dusting towns on its flanks with volcanic ash.

Associated Press photo

Birds fly in the foreground as a plume of ash and steam rise from Popocatepetl volcano as seen from San Andres Cholula, Mexico, Wednesday April 18, 2012. Mexico’s Popocatepetl volcano is continuing to spout gases and hot rock fragments and it is dusting towns on its flanks with volcanic ash.