A forested lava dome, seen here from the east in 1974, filled the crater of México's El Chichón 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 by Paul Damon, 1974 (University of Arizona).
A small explosive eruption of Cleveland on 25 June prompted AVO to raise the Volcano Alert Level and Aviation Color Code. An ash cloud that detached from the volcano was seen on satellite imagery moving S at an estimated altitude of 4.6 km.
SVERT reported that an intense thermal anomaly from Sarychev Peak was detected on satellite imagery during 24-30 June. Gas-and-steam plumes drifted NW, S, and SE.
The Smithsonian's Global Volcanism Program seeks better understanding of all volcanoes through documenting their eruptions — small as well as large — during the past 10,000 years.
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