Popocatepetl volcano's activity puts Mexico City on alert‎

A volcano outside of one of the world's largest cities, Mexico City, has begun spewing ash and molten rock, forcing the authorities to raise the level of alert for fear of an eruption.

Eruptions from the Popocatepetl volcano began to grow larger a week ago as columns of ash began pouring from more than 60 openings in the 17,886 foot high cone.

On Friday a low pitched roar and rolling towers of ash and steam were spewed out as some of the pressure built up inside the magma chamber escaped.

Glowing rock fragments have also been sighted more than 3,000 feet down the slopes of the volcano. Read More