Mount Etna blows spectacular smoke rings into the sky

Mount Etna in Sicily, the largest active volcano in Europe, has been blowing spectacular “smoke rings” into the sky since Wednesday. The “volcanic vortex rings“, a rare phenomenon that is generated by the combination of rapid gas release and the vent shape, spewed out of a new crater that opened on Tuesday on Etna’s summit. #etna #etnavolcano #mountetna Subscribe: Read more: ​ This video may be available for archive licensing via