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Location of Vaniaminof volcano. (Image courtesy Chris Nye, Alaska Volcano Observatory / Alaska Division of Geological & Geophysical Surveys)
Location of Vaniaminof volcano. (Image courtesy Chris Nye, Alaska Volcano Observatory / Alaska Division of Geological & Geophysical Surveys)

News
Fri, 21 Aug 2020, 07:01
Veniaminof volcano from satellite on 18 August (image: Sentinel 2)
The Alaska Volcano Observatory (AVO) reported that the seismic tremor detected in June at the volcano has continued intermittently, but with decreasing frequency, and there have been no indications of surface change including increased temperatures or gas emissions. Tremor at the volcano in the past has sometimes preceded eruptions, but also can occur and persist for weeks to months and not result in an eruption. Current observations suggest activity has returned to near background, and thus the Aviation Color Code and the Volcano Alert Level are being decreased to Green/Normal. Lees alle
Thu, 30 Jul 2020, 21:58
The Alaska Volcano Observatory (AVO) report low-level seismic unrest at Veniaminof volcano continues. No explosive activity was detected by regional infrasound sensors. A small steam plume was observed in a partly cloudy satellite image. ... Lees alle
 

Veniaminof vulkaan

Stratovulkaan 2507 m / 8,225 ft
Alaska Peninsula, USA, 56.17°N / -159.38°W
Current status: normal or dormant (1 out of 5)
Veniaminof webcams / Live-gegevens | Reports
Veniaminof vulkaan boeken
Last update: 21 Aug 2020 (decreasing tremor)
Typical eruption style: Explosieve
Veniaminof vulkaanuitbarstingen: 1750 (?), 1830-38(?), 1838-39, 1874, 1892, 1930, 1939, 1939, 1944, 1956, 1983-84, 1984, 1987, 1993-94, 1995(?), 2002, 2004, 2006 (March) ASTER (Advanced Spaceborne Thermal Emission and Reflection Radiometer) satellite image showing a steam plume emitting from the active intracaldera cone at Veniaminof Volcano on March 4, 2008 at 12:57 PM AKS (image processed by AVO/USGS, Image data courtesy of NASA/GSFC/METI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team)
TijdMag. / DiepteAfstandLocatie
Tue, 22 Sep 2020 (UTC)
Tue, 22 Sep 18:42 UTCM 0.5 / 5 km12 km27 Km W of Chignik Lake, Alaska, USA
Sat, 12 Sep 2020 (UTC)
Sat, 12 Sep 23:53 UTCM 0.2 / 5 km15 km22 Km NNW of Ivanof Bay, Alaska (USA)
Fri, 11 Sep 2020 (UTC)
Fri, 11 Sep 16:30 UTCM 2.9 / 127.5 km16 km34 Km W of Chignik Lake, Alaska (USA)
Thu, 3 Sep 2020 (UTC)
Thu, 3 Sep 20:42 UTCM 0.7 / 11 km26 km14 Km W of Chignik Lake, Alaska (USA)
Tue, 25 Aug 2020 (UTC)
Tue, 25 Aug 23:27 UTCM 0.3 / 9 km15 km18 Km N of Ivanof Bay, Alaska (USA)
Bekijk alle recente aardbevingen
Veniaminof is one of the highest, largest and most active volcanoes on the Alaska Peninsula.

Background:

The massive cone of the stratovolcano is truncated by a steep-walled, 8 x 11 km, glacier-filled caldera that formed around 3700 years ago. The caldera rim is up to 520 m high on the north, is deeply notched on the west by Cone Glacier, and is covered by an ice sheet on the south. Post-caldera vents are located along a NW-SE zone bisecting the caldera that extends 55 km from near the Bering Sea coast, across the caldera, and down the Pacific flank.

Historical eruptions probably all originated from the westernmost and most prominent of two intra-caldera cones, which reaches an elevation of 2156 m and rises about 300 m above the surrounding icefield. The other cone is larger, and has a summit crater or caldera that may reach 2.5 km in diameter, but is more subdued and barely rises above the glacier surface.

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Source: GVP (Smithsonian Institution)

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