Una Una volcano
estratovolcán 507 m / 1,663 ft
Al norte de Sulawesi y las islas Sangihe, Indonesia, -0.17°S / 121.61°ECurrent status
: normal or dormant
(1 out of 5) | ReportsUna Una volcano books
2 nov 2015Typical eruption style
: ExplosivosErupciones del volcán Una Una
: 1983, 1938, 1898-1900 (?)
|Fecha / Hora||Revista / Profundidad||Distancia||Ubicación|
|Tue, 12 Feb 2019|
|Tue, 12 Feb 07:01 UTC||M 3.7 / 10 km||22 km||SULAWESI, INDONESIA|
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.
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.
Onset of an eruption: at first, pressurized gasses escape from the outer margin of the plug of solid lava plugging the circular vent, creating an initial ring of ash. (Ph...
At the moment of the collapse of the hornito, the lens (300mm) was pointed to an area immediately left of it, and this and the next photo show the "missing" left half of ...
The cone of Mt Marow volcano on Nguna Island (Photo: Tom Pfeiffer)
En la cima del mundo... Nuestros miembros de equipo Ulla Lohmann está feliz de haber llegado a volcán más alto del mundo con casi 7000 metros.
Ojos del S... (Photo: Ba...
The old Dutch lighthouse at Anyer was ripped off its foundations by the giant 1883 Krakatau tsunami. (Photo: Tom Pfeiffer)
Nguna Island, little Pele Island and a small part of Efate Island in the background. (Photo: Tom Pfeiffer)