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23. Feb - 1. Mär 2020: Volcanoes of the Danakil desert - Danakil desert (Ethiopia)
14.-27. Mär 2020: Wüste, Salz und Vulkane - Danakilwüste (Äthiopien)
28. Mär - 4. Apr 2020: Heimat des Theseus - Saronischer Golf
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1.-8. Jun 2020: Lavasee des Nyiragongo - DRKongo + Rwanda
11.-29. Aug 2020: Kamchatka - Land of Colors - Kamchatka (Russia)
21.-31. Aug 2020: Islands of Fire and Whales - Kurile Islands (Russia)
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20. Sep - 5. Okt 2020: Feuerberge der Südsee - Vanuatu (Südsee)
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Zufallsfotos
News
Sunday, Feb 16, 2020
The Alaskan Volcano Observatory (AVO) raised the Aviation Colour Code and Alert Level for Semisopochnoi to ORANGE/WATCH due to a significant increase in seismic activity as well as small explosions and tremor bursts, lasting from three to twelve minutes every few hours. No ash plumes have been observed. [mehr]
Semisopochnoi volcano covered by clouds from satellite (image: Sentinel 2)
Friday, Dec 27, 2019
The Alaska Volcano Observatory (AVO) reported that ash plumes reached 5,000 ft (1,500 m) altitude and drifted about 15 km SE on 14 and 17 December. ... [mehr]
 

Semisopochnoi Vulkan

Stratovolcano 1221 m / 4,006 ft
United States, Aleutian Islands, 51.93°N / 179.58°E
Aktueller Status: Schwache Aktivität oder Ausbruchswarnung (3 von 5)
Semisopochnoi Webcams / aktuelle Daten | Berichte
Semisopochnoi Vulkan-B cher
Last update: 16 Feb 2020
Typische Aktivität: unspecified
Ausbrüche des Semisopochnoi: 1987  No recent earthquakes
UhrzeitMag. / TiefeDistanceOrt

Beschreibung:

Semisopochnoi, the largest subaerial volcano of the western Aleutians, is 20 km wide at sea level and contains an 8-km-wide caldera. It formed as a result of collapse of a low-angle, dominantly basaltic volcano following the eruption of a large volume of dacitic pumice. The high point of the island is 1221-m-high Anvil Peak, a double-peaked late-Pleistocene cone that forms much of the island's northern part. The three-peaked 774-m-high Mount Cerberus volcano was constructed during the Holocene within the caldera. Each of the peaks contains a summit crater; lava flows on the northern flank of Cerberus appear younger than those on the southern side. Other post-caldera volcanoes include the symmetrical 855-m-high Sugarloaf Peak SSE of the caldera and Lakeshore Cone, a small cinder cone at the edge of Fenner Lake in the NE part of the caldera. Most documented historical eruptions have originated from Cerberus, although Coats (1950) considered that both Sugarloaf and Lakeshore Cone within the caldera could have been active during historical time.
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Smithsonian / GVP volcano information


Letzte Satellitenbilder


See also: Sentinel hub | Landsat 8
 

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