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Volcano Calendar 2019
: We're proud to present our 2019 volcano calendar: 13 different and attractive images of volcanoes, volcanic landscapes and phenomena taken during volcano tours over the past few years.
: "One of the most eye-catching guides to the world’s volcanoes ever published.
: Our professional team of volcanologists and photographers offers unique travel opportunities: volcano expeditions, photo tours, and relaxed walking & study tours.
The Volcano Adventure Guide
: Excellent information and background for anyone wishing to visit active volcanoes safely and enjoyably. The book presents guidelines to visiting 42 different volcanoes around the world.
: spaces available / : guaranteed / : few spaces left / : booked out
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°ECurrent status
: normal or dormant
(1 out of 5) | ReportsUna Una volcano books
2 Nov 2015Typical eruption style
: ExplosiveUna Una volcano eruptions
: 1983, 1938, 1898-1900 (?)
|Time||Mag. / Depth||Distance||Location|
|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.
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 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...
Mauna Kea volcano, partly in clouds, Big Island, Hawaii (Photo: Janka)
We're passing a lunar landscape of black lapilli and numerous large rounded bombs. (Photo: Tom Pfeiffer)
The cone of Mt Marow volcano on Nguna Island (Photo: Tom Pfeiffer)
More on VolcanoDiscovery:
1-3 day excursions
: If you're interested in volcanoes, there are a number of excursions you should not miss if you're in the area: hike to the craters of Stromboli volcano, climb Etna volcano, get to know the unique volcanic history of Santorini - some examples of shorter (1-3 days) tours and excursions we offer.
Dallol hot springs
: One of the most bizarre landscapes on earth: Dallol is a vast and very active hydrothermal field creating a colorful array of hot springs, small geysers, salt towers, colorful lakes and ponds in the middle of the deepest part of the Danakil desert and the Karum salt lake.
17 days volcano trekking
: This is one of our most exciting volcano tours! Halmahera, North Sulawesi and the Sangihe Islands are not only very scenic and interesting as well as nearly unspoiled by tourism, but also home to some of the country's most active (and often erupting) volcanoes, inclduing Dukono, Ibu, Lokon, Soputan and Karangetang.
Volcano Special Tours
: We organize tours to particularly active volcanoes and during ongoing eruptions for extended observation time from various viewpoints. These trips, exclusively for very small groups, are often announced only at short notice and require fast travel and flexibility. Each trip is accompanied by a volcanologist from our team. Examples include: Kilauea (Hawai'i), Colima (Mexico), Krakatau and many others.