Get our newsletter!
Check out our volcano tours on VolcanoAdventures.com!
Volcanoes & Earthquakes - new app for Android
Guaranteed tours:
19-27 May 2018: From Stromboli to Etna - Eolian Islands + Etna volcano (Italy)
22 May 2018: Stromboli Trekking - Eolian Islands (Sicily)
25 May 2018: Etna Trekking Tour - Etna volcano
9-17 Jun 2018: From Stromboli to Etna - Eolian Islands + Etna volcano (Italy)
24 Jun - 1 Jul 2018: Nyiragongo Lava Lake & Mountain Gorillas - DR Congo + Rwanda
12-14 Jul 2018: Krakatau Volcano Special - Krakatau volcano, Sunda Strait
15-31 Jul 2018: Volcanoes and Spices - N-Sulawesi + Halmahera (Indonesia)
22-27 Jul 2018: Adventure Volcano - Yasur Volcano Travel - Tanna Island (Vanuatu)
22 Jul - 5 Aug 2018: Volcanoes and Cultures - Adventures in the South Sea - Vanuatu (South Sea)
15-31 Aug 2018: Volcanoes and Spices - N-Sulawesi + Halmahera (Indonesia)
: spaces available / : guaranteed / : few spaces left / : booked out
Random pictures
News
Seismic activity at Colo Una Una volcano during the past months
Monday, Nov 02, 2015
A recent period of volcanic unrest seems to be over. Seismic activity has decreased and VSI lowered its alert level back to green (normal) last week. [more]
 

Una Una volcano

stratovolcano 507 m / 1,663 ft
North Sulawesi & Sangihe Islands, Indonesia, -0.17°S / 121.61°E
Current status: dormant (1 out of 5) | Reports
Una Una volcano books
Last update: 2 Nov 2015
Typical eruption style: Explosive
Una Una volcano eruptions: 1983, 1938, 1898-1900 (?)No recent earthquakes
TimeMag. / DepthDistanceLocation
Una Una (also known as Colo) is an isolated volcano in the Gulf of Tomni, offshore central Sulawesi. It is the site of sulfur extraction.

Background:

Una Una volcano is a broad, low volcano containing a 2-km-wide caldera with a small central cone. Only 3 eruptions are known in historic time, but 2 of them caused extensive damage over much of the island. The last eruption of Una Una was in 1983 and produced pyroclastic flows that swept over most of the island shortly after all residents had been evacuated.

Una Una Photos:




Latest satellite images

 

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.