Until 2010, Indonesia’s Sinabung volcano was dormant, with no confirmed eruptions in the historical record. Fresh gas and ash plumes marked the arrival of a new series of eruptions. The Advanced Land Imager (ALI) on the Earth Observing-1 (EO-1) satellite collected this natural-color image of an ash plume from Sinabung on February 6, 2014. Frequent collapses from the unstable lava dome near Sinabung’s summit create pyroclastic flows that have swept at least 4.5 kilometers (2.8 miles) down the volcano’s slopes. The flow deposits are visible southeast of Sinabung’s summit and appear light gray. The eruption has coated much of the surrounding landscape with ash, causing green dark green forests to appear tan.
Image credit: NASA/EO-1 ALI
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