Directory
References
volcanic ash: Media
geology
Videos
Learn about the ancient Roman city of Pompeii, which was buried in volcanic ash when...
Video: Encyclopædia Britannica, Inc.
Images
A column of gas and ash rising from Mount Pinatubo in the Philippines on June 12,...
David H. Harlow/U.S.Geological Survey
A cloud of ash and pumice rises into the air on July 22, 1980, following an explosive...
Mike Doukas/U.S. Geological Survey
Buildings and vegetation at Clark Air Base, Philippines, destroyed by a thick, wet...
Willie Scott/U.S. Geological Survey
Earth's atmosphere showing the Mount Pinatubo dust layer, photographed from the U.S....
NASA/Johnson Space Center