Volcanic vortex: Mount Etna blows rings into the Sicilian sky – video

Mount Etna has blown volcanic vortex rings into the Sicilian skyline after the recent formation of a near-perfectly circled mouth. Although the rare natural phenomenon looks like smoke rings, they are actually made up of steam and gases. According to volcanologist Boris Behncke, Mount Etna produces more rings than any other volcano on earth. Locals have nicknamed Etna the 'Lady of the Rings'

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