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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
Saturday, Dec 12, 2015
The Alaska Volcano Observatory lowered the volcano's alert status back to normal/green: ... [more]
Friday, Oct 16, 2015
AVO reported that "slightly elevated levels of seismicity continued to be detected at Veniaminof during 7-13 October. Minor steam emissions were recorded by the webcam on 7 October. The Aviation Color Code remained at Yellow and the Volcano Alert Level remained at Advisory." [more]
 

Veniaminof volcano

Stratovolcano 2507 m / 8,225 ft
Alaska Peninsula, USA, 56.17°N / -159.38°W
Current status: dormant (1 out of 5)
Veniaminof webcams / live data
Veniaminof volcano books
Last update: 12 Dec 2015
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 (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) No recent earthquakes
TimeMag. / DepthDistanceLocation
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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