Watch "vortex rings" above Mount Etna CNN 0 119 04.08 03:05 https://www.youtube.com/watch?v=J2Aj6Cv6l64 + 11 https://www.youtube.com/feeds/videos.xml?channel_id=UCupvZG-5ko_eiXAup… + 10 Watch "vortex rings" above Mount Etna