NASA published this image of Mount Etna from last Friday. "Throughout 2011, activity at Sicily’s Mount Etna has been characterized by paroxysms: short, violent bursts of activity. Each event has included volcanic tremors, ash emissions, and lava flows centered around the New Southeast Crater, just below the summit. On August 12, 2011, Etna had its tenth paroxysm of the year, captured in this natural-color satellite image."