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Snowy Mountain ηφαίστειο

Τελευταία ανανενώση: 1 Δεκεμβρίου 2022 19:56 GMT -
Stratovolcanoes 2162 m / 7,093 ft
United States, Alaska Peninsula, 58.34°N / -154.68°W
Current status: normal or dormant (1 out of 5)

Διαδραστικός χάρτης
Typical eruption style: δεν έχει καθοριστεί
Snowy Mountain ηφαίστειο εκρήξεις: 1710 ± 200 years

Latest nearby earthquakes

ΏραMag. / ΒάθοςΑπόσταση/Τοποθεσία
Τετάρτη, 30 Νοεμβρίου 2022 GMT (6 σεισμοί)
29 Νοε 2022 21:02 (GMT -9) (30 Νοε 2022 06:02 GMT)
2.2
24 km (15 mi)
86 km βορειοδυτικά από Karluk, Kodiak Island, Αλάσκα, Ηνωμένες Πολιτείες
29 Νοε 2022 20:58 (GMT -9) (30 Νοε 2022 05:58 GMT)
2.5
24 km (15 mi)
85 km βορειοδυτικά από Karluk, Kodiak Island, Αλάσκα, Ηνωμένες Πολιτείες
29 Νοε 2022 18:44 (GMT -9) (30 Νοε 2022 03:44 GMT)
2.4

71 km
42 km (26 mi)
99 km δυτικά από Kodiak Station, Kodiak Island, Αλάσκα, Ηνωμένες Πολιτείες
29 Νοε 2022 21:02 (GMT -9) (30 Νοε 2022 06:02 GMT)
2.2
24 km (15 mi)
86 km βορειοδυτικά από Karluk, Kodiak Island, Αλάσκα, Ηνωμένες Πολιτείες
29 Νοε 2022 20:58 (GMT -9) (30 Νοε 2022 05:58 GMT)
2.5
24 km (15 mi)
85 km βορειοδυτικά από Karluk, Kodiak Island, Αλάσκα, Ηνωμένες Πολιτείες
29 Νοε 2022 18:44 (GMT -9) (30 Νοε 2022 03:44 GMT)
2.4

71 km
42 km (26 mi)
99 km δυτικά από Kodiak Station, Kodiak Island, Αλάσκα, Ηνωμένες Πολιτείες

Background

Glacier-covered, 2161-m-high Snowy Mountain, located 15 km NE of Mount Katmai, is the SW-most of a chain of closely spaced volcanoes extending NE along the crest of the Alaska Range. More than 90% of the compound Snowy volcano is mantled by glacial ice, which prompted the naming of the volcano by members of the 1917 Katmai expedition. Two small andesitic-dacitic stratovolcanoes, SW Snowy and NE Snowy, originated about 200,000 years ago. Only NE Snowy has been active during the Holocene. Late-Holocene collapse of this volcano produced a large debris avalanche that traveled to the north and left a large breached crater inside which a blocky lava dome was constructed. Peat beneath an ash layer thought to be associated with the the lava dome was radiocarbon dated at about 250 +/- 70 years ago. No historical eruptive activity has been documented, but fumarolic activity has been observed at NE Snowy. A zone of persistent diffuse shallow seismicity is located on and NW of the volcano.
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Smithsonian / GVP volcano information


See also: Sentinel hub | Landsat 8 | NASA FIRMS

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