"The volcano is approximately 280 miles from the ... "A major south-flank collapse during a 1964 Plinian explosion produced a scarp in which a "Young Sheveluch" dome began to form in 1980.

SEE ALSO: A volcano just erupted in Europe and the footage is amazing Unlike Italy's Mount Etna, Popocatépetl hasn't spewed any spectacular lava-- much to the relief of residents in Mexico's ...