Mount Etna: volcano blows rings

Posted on 21 Nov 2013

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These incredible pictures taken over Mount Etna show an unusual sequence of what appear to be smoke rings. Also known as vortex rings, they are actually an emission of steam and gas

Mount Etna produces a series of rare steam rings  technically known as 'vortex rings' in Sicily, Italy. Mount Etna produces a series of rare steam rings technically known as 'vortex rings' in Sicily, Italy.Mount Etna produces a series of rare steam rings technically known as 'vortex rings' in Sicily, Italy.Mount Etna produces a series of rare steam rings technically known as 'vortex rings'  in Sicily, Italy.

 

via Mount Etna: volcano blows rings – in pictures | World news | theguardian.com.

Posted in: Earth, Strange