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Westdahl volcano

¿Estratovolcán? 1654 m / 5,426 ft
United States, Aleutian Islands, 54.52°N / -164.65°W
Current status: normal or dormant (1 out of 5)

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Typical eruption style: sin especificar
Erupciones del volcán Westdahl: 1992 

Latest nearby earthquakes

Fecha / HoraRevista / ProfundidadDistanciaUbicación
Thu, 15 Apr 2021 (GMT) (1 terremoto)
15 Apr 2021 06:23:18 GMT
0.8

8.4 km - Más
81 km35 Km S of False Pass, Alaska, USA
Wed, 14 Apr 2021 (GMT) (2 temblores)
14 Apr 2021 15:49:44 GMT
1.5

0.6 km - Más
76 km39 Km S of False Pass, Alaska, USA
14 Apr 2021 15:49:44 GMT
1.4

13 km - Más
86 km32 Km S of False Pass, Alaska, USA
Sun, 4 Apr 2021 (GMT) (1 terremoto)
4 Apr 2021 18:22:06 GMT
1.9

7.9 km - Más
82 km34 Km S of False Pass, Alaska, USA

Background

Westdahl is a broad, 1654-m-high glacier-covered volcano occupying the SW end of Unimak Island. Two peaks protrude from the summit plateau, and a new crater formed in 1978 cuts the summit icecap. The broad volcano has a somewhat of a shield-like morphology and forms one of the largest volcanoes of the Aleutian Islands. The sharp-topped, conical Pogromni stratovolcano lies 5 km north of Westdahl. Pogromni rises to 2002 m, several hundred meters higher than Westdahl, but is moderately glacially dissected and presumably older. Many satellitic cones of postglacial age are located along a NW-SE line cutting across the summit of Westdahl. Some of the historical eruptions attributed to the eroded Pogromni volcano may have originated instead from Westdahl (Miller et al. 1998). The first historical eruption of Westdahl occurred in 1795. An 8-km-long fissure extending east from the summit of Westdahl produced explosive eruptions and lava flows in 1991.
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Smithsonian / GVP volcano information


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