Steam and sulfurous gases rise from one of the active vents in the central crater of Mt. Etna, in Sicily. Behind on the left is another active vent; to the right is a plugged vent. Most of the recent eruptions have been from the southeast crater, which is new enough that it doesn't appear on most maps. The southeast crater erupted briefly in May, but geologists believe that fractures in its face suggest that it could erupt again soon.
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