Get our newsletter!
Check out our volcano tours on VolcanoAdventures.com!
Volcanoes & Earthquakes - new app for Android
Guaranteed tours:
30 Sep - 7 Oct 2018: Fascination Volcano - Santorini Island (Greece)
30 Sep - 10 Oct 2018: The Volcanoes of Ambrym - the Grand Traverse - Vanuatu (South Sea)
6-13 Oct 2018: Pearl of the Aegean - Santorini - Santorini Island, Greece
13-20 Oct 2018: Almonds, olives and volcanoes - Nisyros Island, Greece
15-20 Oct 2018: Krakatau Volcano Special - Krakatau volcano, Sunda Strait
13-29 Nov 2018: Volcano Special: Ibu - Dukono - Lokon - Halmahera (Indonesia)
17-30 Nov 2018: Desert, salt and volcanoes - Danakil desert (Ethiopia)
8-21 Dec 2018: Desert, salt and volcanoes - Danakil desert (Ethiopia)
27 Dec 18 - 2 Jan 2019: Kilauea Volcano Special - Big Island, Hawaiʻi
6-13 Apr 2019: Pearl of the Aegean - Santorini - Santorini Island, Greece
: 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:

effusive

Volcanology: effusive (volcanic) eruption
An effusive vent at Mt Etna volcano
An effusive vent at Mt Etna volcano
A lava flow is the result of an effusive eruptions (here Mt. Etna in Nov 2006)
A lava flow is the result of an effusive eruptions (here Mt. Etna in Nov 2006)
Effusive means flowing out of lava as opposed to explosive eruptions.
If magma is sufficiently fluid and if it is not framented by expanding gasses when reaching the surface vent, it can erupt to form lava flows. This is called effusive eruption. The opposite of effusive is explosive, i.e. fragmentation of magma.

Related keywords (2):

Etna - explosive
 

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.