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Fourpeaked ηφαίστειο

Τελευταία ανανενώση: 6 Δεκεμβρίου 2022 17:45 GMT -
Stratovolcano 2105 m / 6,906 ft
United States, Alaska Peninsula, 58.77°N / -153.67°W
Current status: normal or dormant (1 out of 5)
Last update: 10 Dec 2021 (Smithsonian / USGS Weekly Volcanic Activity Report)

Διαδραστικός χάρτης
Typical eruption style: δεν έχει καθοριστεί
Fourpeaked ηφαίστειο εκρήξεις: 2006 

Latest nearby earthquakes

ΏραMag. / ΒάθοςΑπόσταση/Τοποθεσία
Παρασκευή, 2 Δεκεμβρίου 2022 GMT (1 σεισμός)
1 Δεκ 2022 15:55 (GMT -9) (2 Δεκ 2022 00:55 GMT)
2.3

77 km
35 km (22 mi)
126 km βορειοδυτικά από Kodiak Station, Kodiak Island, Αλάσκα, Ηνωμένες Πολιτείες
Τρίτη, 29 Νοεμβρίου 2022 GMT (1 σεισμός)
29 Νοε 2022 13:03 (GMT -9) (29 Νοε 2022 22:03 GMT)
1.4

18 km
32 km (20 mi)
91 Km NW of Aleneva, Alaska
Δευτέρα, 28 Νοεμβρίου 2022 GMT (1 σεισμός)
28 Νοε 2022 11:49 (GMT -9) (28 Νοε 2022 20:49 GMT)
2.8

82 km
23 km (14 mi)
133 km βορειοδυτικά από Kodiak, Αλάσκα, Ηνωμένες Πολιτείες
Κυριακή, 27 Νοεμβρίου 2022 GMT (1 σεισμός)
26 Νοε 2022 19:50 (GMT -9) (27 Νοε 2022 04:50 GMT)
1.8

14 km
28 km (17 mi)
138 km βορειοδυτικά από Kodiak, Αλάσκα, Ηνωμένες Πολιτείες
Τρίτη, 22 Νοεμβρίου 2022 GMT (1 σεισμός)
22 Νοε 2022 13:13 (GMT -9) (22 Νοε 2022 22:13 GMT)
1.9

18 km
6.8 km (4.2 mi)
96 km νοτιοανατολικά από Kokhanok, Lake and Peninsula, Αλάσκα, Ηνωμένες Πολιτείες

Background

Poorly known Fourpeaked volcano in NE Katmai National Park consists of isolated outcrops surrounded by the Fourpeaked Glacier, which descends eastward almost to the Shelikof Strait. The orientation of andesitic lava flows and extensive hydrothermal alteration of rocks near the present 2105-m-high summit suggest that it probably marks the vent of Fourpeaked volcano. Eruptive activity during the Holocene had not been confirmed prior to the first historical eruption of Fourpeaked in September 2006. A N-trending fissure extending 1 km from the summit produced minor ashfall.
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Smithsonian / GVP volcano information


See also: Sentinel hub | Landsat 8 | NASA FIRMS
Wed, 13 Jun 2007, 06:00

Fourpeaked volcano (United States) - Smithsonian / USGS Weekly Volcanic Activity Report for 13 June-19 June 2007 (Continuing Activity)

AVO reported that on 6 June the Volcanic Activity Alert Level for Fourpeaked was lowered from Advisory to Normal and the Aviation Color Code was lowered from Yellow to Green based on declining rates of seismicity and gas emission. ... Read all
Sat, 11 Nov 2006, 09:13

Fourpeaked volcano (Alaska), activity update: low seismicity, steam plumes

Low-level earthquake activity continues at Fourpeaked volcano. Web camera views this past week show a typical steam plume rising several hundred meters above the summit. Read all
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