Una Una volcano

stratovolcano 507 m / 1,663 ft
North Sulawesi, Indonesien, -0.17°S / 121.61°E
Current status: normal or dormant (1 out of 5)
Last update: 27 Feb 2020

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.

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Typical eruption style: Explosive
Una Una volcano eruptions: 1983, 1938, 1898-1900 (?)

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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

island colours - full moon over ice laguna (Photo: Tom222)
island colours - full moon over ice laguna (Photo: Tom222)
To get to the rim of Marum, we first have to circle it and descend a bit again, following a ridge in a moon-like landscape of ash, erosion gullies and (fortunately not recent) volcanic blocks and bombs.  (Photo: Tom Pfeiffer)
To get to the rim of Marum, we first have to circle it and descend a bit again, following a ridge in a moon-like landscape of ash, erosion gullies and (fortunately not re...
An impressive steam plume is rising from Kamokuna sea entry at Kilauea volcano, Hawai'i.
The lava erupts to the surface at the volcano's eastern rift zone at the Pu'u O'o vent and flows for many miles through an underground lava tube until it reaches the coast. 
The lava entry shown here has been going on since July 2016 and has been enlarging the Island of Hawai'i by building a fragile delta of new land. (Photo: Tom Pfeiffer)
An impressive steam plume is rising from Kamokuna sea entry at Kilauea volcano, Hawai'i.
The lava erupts to the surface at the volcano's eastern rift zone at the Pu...
Mauna Kea volcano, partly in clouds, Big Island, Hawaii (Photo: Janka)
Mauna Kea volcano, partly in clouds, Big Island, Hawaii (Photo: Janka)
 



See also: Sentinel hub | Landsat 8
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