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Sicily’s 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This page contains archived content and is no longer being updated.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.
On July 21, 2006, the Moderate Resolution Imaging Spectroradiometer (MODIS) flying onboard NASA’s Terra satellite captured this image as Sicily’s Mount Etna Volcano emitted a faint plume of volcanic ash that blew away from the summit, toward the southwest. Days earlier, the volcano sent lava into the air, according to a report from Telegraph.co.uk. While taking this picture, MODIS detected a hotspot, a place where surface temperatures were much higher than in the surrounding area. The hotspot is marked with a red outline in this image.