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Quiescent Mount Etna
This page contains archived content and is no longer being updated. At the time of publication, it represented the best available science. However, more recent observations and studies may have rendered some content obsolete.
After a brief spurt of activity on April 9th and 10th, 2011, Mounta Etna is relatively quiet again. Except for a thin ribbon of fresh lava, pristine snow covers the summit of the volcano in this natural-color satellite image. In addition to lava and ash (now hidden beneath snow), the eruption generated small pyroclastic flows. These flows were generated by the violent interaction between hot lava and deep snow.