Shishaldin Volcano
Updated: 20. Apr. 2024 04:05 GMT -
Stratovolcano 2857 m / 9,373 ft
Aleutian Islands, Alaska, 54.76°N / -163.97°W
Aktueller Status: unruhig (2 von 5)
Aleutian Islands, Alaska, 54.76°N / -163.97°W
Aktueller Status: unruhig (2 von 5)
Last update: 21 Feb 2024 (Smithsonian / USGS Weekly Volcanic Activity Report)
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Ausbrüche des Shishaldin: 2023 (Jul 12-ongoing), 2019 (Jul 23 - 2020 May 4), 2014-15, 2008 (?), 2004, 2002, 2000, 1999, 1997, 1995, 1993, 1986-87, 1981 (?), 1979, 1978, 1976, 1975, 1967, 1963, 1955, 1953, 1951, 1948, 1946-47, 1932, 1929, 1928, 1927, 1925, 1922, 1912 (?), 1901, 1899 (?), 1898, 1897 (?), 1883, 1880-81, 1865 (?), 1842, 1838, 1830, 1927-29, 1826, 1825, 1824, 1790 (?), 1775-78
Letzte Erdbeben in der Nähe
| Uhrzeit | Mag. / Tiefe | Entfernung / Ort | |||
| 12. Apr. 20:23 (Anchorage) | 1.3 19 km | 4.9 km nordöstlich |  32 km WSW of False Pass, Alaska | Info | |
| Donnerstag, 11. April 2024 GMT (1 Beben) | |||||
| 11. Apr. 01:42 (Anchorage) | 1.6 0.8 km | 19 km westlich | 56 km W of False Pass, Alaska | Info | |
| Freitag, 19. April 2024 GMT (1 Beben) | |||||
| 19. Apr. 01:55 (Anchorage) | 0.8 8 km | 1.6 km nordöstlich | 36 km WSW of False Pass, Alaska | Info | |
| Sonntag, 14. April 2024 GMT (2 Beben) | |||||
| 14. Apr. 09:42 (Anchorage) | 0.4 12 km | 3.8 km östlich | 33 km WSW of False Pass, Alaska | Info | |
| 14. Apr. 15:42 (Anchorage) | 0.3 13 km | 5.3 km nordwestlich | 40 km W of False Pass, Alaska | Info | |
Beschreibung
The beautifully symmetrical volcano of Shishaldin is the highest and one of the most active volcanoes of the Aleutian Islands. The 2857-m-high, glacier-covered volcano is the westernmost of three large stratovolcanoes along an E-W line in the eastern half of Unimak Island. The Aleuts named the volcano Sisquk, meaning "mountain which points the way when I am lost." A steady steam plume rises from its small summit crater. Constructed atop an older glacially dissected volcano, Shishaldin is Holocene in age and largely basaltic in composition. Remnants of an older ancestral volcano are exposed on the west and NE sides at 1500-1800 m elevation. Shishaldin contains over two dozen pyroclastic cones on its NW flank, which is blanketed by massive aa lava flows. Frequent explosive activity, primarily consisting of strombolian ash eruptions from the small summit crater, but sometimes producing lava flows, has been recorded since the 18th century.---
Smithsonian / GVP volcano information
Shishaldin Volcano Photos
Die Vulkankette auf Unimak, von links nach rechts: Roundtop Mountain, Isanotski, Pogromni und Shishaldin. (Photo: marcofulle)
Mit Ausnahme des obersten Teils sind die obersten Flanken von Shishaldin von Gletschern bedeckt. Ihr schneller Fluss führt zu einer intensiven Spaltenbildung. (Photo: mar...
Der perfekte Kegel des Vulkans Shishaldin erhebt sich hoch über einer Schicht Stratocumuls-Wolken. Der Vulkan Pogromni ganz rechts. (Photo: marcofulle)
Während Shishaldin ein hervorragendes Beispiel für einen jungen, symmetrischen Stratovulkan ist, ist der viel ältere Isanotski unregelmäßig und stark erodiert. (Photo: ma...
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