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Novarupta ηφαίστειο

Τελευταία ανανενώση: 29 Νοεμβρίου 2022 14:40 GMT -
Caldera 841 m / 2,759 ft
United States, Alaska Peninsula, 58.27°N / -155.16°W
Current status: normal or dormant (1 out of 5)
Last update: 6 Jan 2022 (Volcanic Ash Advisory)

Διαδραστικός χάρτης
Typical eruption style: δεν έχει καθοριστεί
Novarupta ηφαίστειο εκρήξεις: 1912 

Latest nearby earthquakes

ΏραMag. / ΒάθοςΑπόσταση/Τοποθεσία
Κυριακή, 27 Νοεμβρίου 2022 GMT (1 σεισμός)
27 Νοε 2022 13:11 (GMT -9) (27 Νοε 2022 22:11 GMT)
2.2

11 km
45 km (28 mi)
47 km βόρεια από Karluk, Kodiak Island, Αλάσκα, Ηνωμένες Πολιτείες
Τετάρτη, 23 Νοεμβρίου 2022 GMT (1 σεισμός)
23 Νοε 2022 00:18 (GMT -9) (23 Νοε 2022 09:18 GMT)
2.5
2.2 km (1.4 mi)
98 km νοτιοανατολικά από King Salmon, Bristol Bay, Αλάσκα, Ηνωμένες Πολιτείες
Κυριακή, 20 Νοεμβρίου 2022 GMT (2 σεισμοί)
20 Νοε 2022 05:35 (GMT -9) (20 Νοε 2022 14:35 GMT)
4.1

7.1 km
5.8 km (3.6 mi)
173 km δυτικά από Kodiak, Αλάσκα, Ηνωμένες Πολιτείες
19 Νοε 2022 23:23 (GMT -9) (20 Νοε 2022 08:23 GMT)
1.9

1.3 km
3.7 km (2.3 mi)
86 km βορειοδυτικά από Karluk, Kodiak Island, Αλάσκα, Ηνωμένες Πολιτείες

Background

Novarupta, the least topographically prominent volcano in the Katmai area, was formed during a major eruption in 1912. This eruption was the world's largest during the 20th century and produced a voluminous rhyolitic airfall tephra and the renowned Valley of Ten Thousand Smokes (VTTS) ash flow. At the end of the eruption a small, 65-m-high, 400-m-wide lava dome grew to an elevation of 841 m within the source vent of the VTTS ashflow, a 2-km-wide area of subsidence NW of Trident volcano. The NE side of the Falling Mountain lava dome of the Trident volcanic cluster, as well as Broken Mountain and Baked Mountain, was removed by collapse of the Novarupta depression, which is marked by radial and scalloped arcuate fractures. Much larger collapse took place at Katmai volcano, 10 km to the east, where a 3 x 4 km wide caldera formed in response to magma reservoir drainage toward Novarupta.
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Smithsonian / GVP volcano information


See also: Sentinel hub | Landsat 8 | NASA FIRMS
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