More photos of the Popocatepetl volcano on PhotoBlog.
Ronaldo Schemidt / AFP - Getty Images
Incandescent materials, ash and smoke are spewed from the Popocatepetl volcano, seen from Santiago Xalitzintla, in the Mexican central state of Puebla, on April 24. Residents at the foot of Mexico's Popocatepetl volcano no longer sleep soundly since the towering mountain roared back into action over a week ago, spewing out a hail of rocks, steam and ashes. The volcano, Mexico's second highest peak at 5,452 metres, started rumbling and spurting high clouds of ash and steam on April 13, provoking the authorities to raise the alert to level five on a seven-point scale.