Plinian
eruptions are large explosive events that form enormous dark
columns of
tephra
and gas high into the stratosphere (>11 km). Such eruptions are
named for Pliny the Younger, who carefully described the
disastrous eruption of Vesuvius in 79 A.D. This eruption generated
a huge column of tephra into the sky,
pyroclastic flows
and
surges, and extensive
ash
fall. Many thousands of people evacuated areas around the volcano,
but about 2,000 were killed, including Pliny the Older.