The solidified plug of an old cinder cone (Photo: Tom Pfeiffer)
Piu su VolcanoDiscovery
Etna's steam rings
: A collection of fantastic vortex rings ("smoke rings") we observed recently on Etna.
Volcano Special expedition
: Special tour to see the ongoing eruption of Shivleuch volcano. Max 6 participants, 5 nights on location, accompanied by our team and local volcanologists. Sign up deadline Sun 24 Feb 2019!