vulcano sottomarino -18 m / -60 ft
Greece, 36.52°N / 25.49°E
Stato attuale: normal or dormant (1 di 5)
Last update: 26 Mar 2019
Kolumbo (or Kolumbos) volcano is an active submarine volcano located 8 km NE of Santorini Island in the Aegean Sea. The volcano forms an elliptical SW-NE elongated 3 km wide cone with a 500 m deep and 1.5 km wide crater, whose rim's highest parts rise to 18-15 m beneath sea level.
Stile eruttivo tipico
The crater floor, in particular in its northern part, contains a large and very active high-temperature fumarole field.
The crater of Kolumbo volcano is a small caldera which could have (at least in parts) formed during the volcano's only known, but very violent last eruption which occurred in 1650 AD.
Eruzioni del vulcano Kolumbo
Latest nearby earthquakes
Non terremoti recenti
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The large hydrothermal field in the northern part of the caldera at about 500 m depth contains a massive Kuroko-style sulfide deposit. Only few such deposits are known world-wide and they are of great interest, especially because of the typically high content of gold and silver in the sulfides. In 2010, the exploration Vessel (E/V) Nautilus discovered steep, up to 6 m high chimneys of sulfides above one of the vents.
1650 eruption of Kolumbo volcano
The 1650 eruption was a very explosive event and ejected pumice and ash as far as Turkey, and produced pyroclastic flows that killed about 70 people on Santorini. During the eruption, it constructed a temporary island (hence it's name Kolumbo, in Greece "swimming"). A tsunami occurred as well, probably during the collapse of the cone. It caused damage on nearby islands up to 150 km and invaded the flat coastal areas especially on the eastern side of Santorini, where ruins from Roman times were uncovered. The eruption also caused damage killed a great number of livestock because of poisonous gasses, mainly H2S.
- Thera 2006 Expedition Summary
(NOAA Ocean Explorer)
- Special Volume of Oceanography
- <linkhttp://www.nautiluslive.org/>Follow Dr. Robert Ballard and his team as
they explore the ocean on the E/V Nautilus
See also: Sentinel hub
| Landsat 8
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: Greece has a lot of earthquake activity, but most of them occur around the margin of the Aegean microplate. The Cycladic islands are located in its center and therefore seismically comparably quiet.