Photos: Volcano roars, spews ash in Mexico
Incandescent materials, ash and smoke are spewed from the Popocatepetl Volcano as seen from the Santiago Xalitxintla, in the Mexican central state of Puebla on April 20, 2012. Mexico's Popocatepetl volcano, outside the capital, rumbled continuously and spewed gases and glowing rocks to almost one mile (one kilometer) beyond its crater, authorities said April 20. AFP PHOTO/Yuri CORTEZ (Photo credit should read YURI CORTEZ/AFP/Getty Images)
