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View of the Fire Volcano erupting from San Antonio community, Colima State, Mexico, on July 12, 2015. Hundreds of people were evacuated from villages around Mexico's "Volcano of Fire" and an airport closed on Saturday amid fears an eruption could escalate to become the biggest in a century. AFP PHOTO / HECTOR GUERRERO (Photo credit should read HECTOR GUERRERO/AFP/Getty Images)

View of the Fire Volcano erupting from San Antonio community, Colima State, Mexico, on July 12, 2015. Hundreds of people were evacuated from villages around Mexico's "Volcano of Fire" and an airport closed on Saturday amid fears an eruption could escalate to become the biggest in a century. AFP PHOTO / HECTOR GUERRERO        (Photo credit should read HECTOR GUERRERO/AFP/Getty Images)