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El Chichon Volcano, Mexico
A forested lava dome, seen here from the east in 1974, filled the crater of Mexico's El Chichon volcano and formed the volcano's high point prior to a major eruption in 1982.
The low ridge cutting across the middle of the photo is the rim of the pre-1982 crater.
Powerful explosive eruptions in March and April 1982 removed the lava dome and replaced it with a 1-km-wide crater.
PHOTO SOURCE: Paul Damon 1974, University of Arizona, courtesy of the Global Volcanism Program, Smithsonian National Museum of Natural History, used with permission.
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