Get our newsletter!
Check out the volcano tours offered by Volcano-Adventures!
Volcanoes & Earthquakes - new app for Android
Guaranteed tours:
23-28 Sep 2017: Aegean's Hidden Gem: Isle of Milos - Milos Island (Greece)
1-16 Oct 2017: From Krakatau to Bali - Java (Indonesia)
7-14 Oct 2017: Pearl of the Aegean - Santorini - Santorini Island, Greece
16-19 Oct 2017: Indonesia Specials - Java-Komodo-Bali (Indonesia)
14-27 Nov 2017: Expedition Papua - Papua New Guinea
23 Dec 17 - 5 Jan 2018: Desert, salt and volcanoes - Danakil desert (Ethiopia)
30 Dec 17 - 6 Jan 2018: Nyiragongo Lava Lake & Mountain Gorillas - DR Congo + Rwanda
13-26 Jan 2018: Desert, salt and volcanoes - Danakil desert (Ethiopia)
28 Jan - 4 Feb 2018: Nyiragongo Lava Lake & Mountain Gorillas - DR Congo + Rwanda
: spaces available / : guaranteed / : few spaces left / : booked out

Support us?


Maintaining the volcano and earthquake news sections on this website, the free Volcano Webcams tool and interactive map widget is a free-time, both time- and server cost intensive effort.
If you find the information useful and would like to support us, and help keep it alive and improve it, please consider making a small donation. Thank you!
Random pictures

Illustrated Volcano Glossary

Search for term:

smoke ring

Volcanology: volcanic smoke ring, gas ring, steam ring
Etna's Bocca Nuova crater in 2000, emitting smoke rings
Etna's Bocca Nuova crater in 2000, emitting smoke rings
Smoke ring detail (Etna)
Smoke ring detail (Etna)
Perfect smoke ring from Etna
Perfect smoke ring from Etna
On 28 June 2006, one of Stromboli's vents produced series of smoke rings
On 28 June 2006, one of Stromboli's vents produced series of smoke rings
A rare phenomenon, where a visible vortex ring of steam and gas is expelled from a volcanic vent.
Under special conditions, gas and steam expelled from a vent can form gas rings. It probably requires a particular geolometric configuration of a circular vent exit, as well as expulsion of gas in individual puffs with just the right velocity.

This phenomenon is quite rare, but has been witnessed at several volcanoes, including Stromboli and Etna. At Etna, a spectacular period lasting several months was observed in 2000, when one of its vents created hundreds of smoke rings each day, in rapid succession.
 

More on VolcanoDiscovery:

Copyrights: VolcanoDiscovery and other sources as noted.
Use of material: Text and images on this webpage are copyrighted. Further reproduction and use without authorization is not consented. If you need licensing rights for photographs, for example for publications and commercial use, please contact us.