Colorful rainbow on the sky above Etna
On 4 December 2015 an eruptive rainbow colored the sky above the summit of Etna. The Voragine crater (on the right) produced powerful reddish lava fountains, dark-brownish tephra plumes and whitish gas columns, while from the New-Southeast Crater (on the left) a pinkish ash emission was taking place from a small-pit-crater.
Taken on 4
Submitted on 01 March 2016
Credit: Daniele Andronico (distributed via imaggeo.egu.eu)
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