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Veniaminof volcano

Updated: Mar 4, 2024 21:06 GMT -
Stratovolcano 2507 m / 8,225 ft
Alaska Peninsula, USA, 56.17°N / -159.38°W
Current status: normal or dormant (1 out of 5)
Last update: 9 Dec 2021 (Smithsonian / USGS Weekly Volcanic Activity Report)
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)
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)

Veniaminof is one of the highest, largest and most active volcanoes on the Alaska Peninsula.

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Typical eruption style: Explosive
Veniaminof volcano eruptions: 1750 (?), 1830-38(?), 1838-39, 1874, 1892, 1930, 1939, 1939, 1944, 1956, 1983-84, 1984, 1987, 1993-94, 1995(?), 2002, 2004, 2006 (Mar), 2008 (Feb-Mar), 2013 (Jun-Oct), 2021 (Feb-ongoing)

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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)


See also: Sentinel hub | Landsat 8 | NASA FIRMS
Wed, 7 Jul 2021, 06:00

Veniaminof volcano (United States) - Smithsonian / USGS Weekly Volcanic Activity Report for 7 July-13 July 2021 (Continuing Activity)

AVO changed both the Aviation Color Code and Volcano Alert Level for Veniaminof to Green and Normal, respectively, on 8 July, noting that seismic stations were back online. The monitoring network consists of local and regional seismic stations, regional infrasound networks, lightning detection, and satellite image monitoring. ... Read all
Wed, 12 May 2021, 06:00

Veniaminof volcano (United States) - Smithsonian / USGS Weekly Volcanic Activity Report for 12 May-18 May 2021 (Continuing Activity)

No eruptive activity at Veniaminof had been recorded in seismic or infrasound data since early April. On 12 May AVO changed both the Aviation Color Code and Volcano Alert Level to Unassigned, noting that several seismic station outages impeded the ability to detect seismic unrest at the volcano. Monitoring was ongoing based on the utilization of the remaining seismic stations, the regional infrasound networks, the detection of lightning, and satellite image monitoring. ... Read all
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)