Mount Veniaminof

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Mount Veniaminof
MountVeniaminof.jpg
Steam rising from the intracaldera cinder cone at Veniaminof volcano in the waning stages of the 1983 to 1984 eruption.
Highest point
Elevation8,225 ft (2,507 m)
Prominence8,199 ft (2,499 m) [1]
Listing
Coordinates56°11′53″N 159°23′27″W / 56.19806°N 159.39083°W / 56.19806; -159.39083Coordinates: 56°11′53″N 159°23′27″W / 56.19806°N 159.39083°W / 56.19806; -159.39083
Geography
Parent rangeAleutian Range
Topo mapUSGS Chignik A-5
Geology
Mountain typeStratovolcano with a summit caldera
Volcanic arc/beltAleutian Arc
Last eruptionSeptember 4, 2018[2]-ongoing
Designated1967

Mount Veniaminof is an active stratovolcano on the Alaska Peninsula. The Alaska Volcano Observatory currently rates Veniaminof as Aviation Color Code ORANGE and Volcano Alert Level WATCH as of 22 November 2018, at 2005 (UTC),[3] after it being RED/WARNING since 21 November 2018, at 1915 (UTC);[4] the mountain was named after Ioann (Ivan Popov) Veniaminov (1797–1879), a Russian Orthodox missionary priest (and later a prominent bishop in Russia) whose writings on the Aleut language and ethnology are still standard references. He is a saint of the Orthodox Church, known as Saint Innocent for the monastic name he used in later life.

The volcano was the site of a colossal (VEI 6) eruption around 1750 BC; this eruption left a large caldera. In modern times the volcano has had numerous small eruptions (over ten of them since 1930), all at a cinder cone in the middle of the caldera.

Veniaminof is one of the highest of Alaskan volcanoes. Partly for this reason, it is covered by a glacier that fills most of the caldera; because of the glacier and the caldera walls, there is the possibility of a major flood from a future glacier run.

The volcano recently began erupting on September 3rd, 2018 as magma broke through the summit and flowed down its slopes as a lava flow. Despite starting off as an effusive eruption, by November 20th, the eruption became more intense and ash was reaching 20,000 feet, prompting the AVO to give a warning for aviation because of the ash posing a threat to aviation. Even an ashfall warning was issued for the nearby town of Perryville.

In 1967, Mount Veniaminof was designated as a National Natural Landmark by the National Park Service.[5]

Map showing volcanoes of Alaska Peninsula.

See also[edit]

References[edit]

  1. ^ Alaskan ultra-prominent peaks on peaklist.org
  2. ^ https://avo.alaska.edu/activity/report.php?type=3&id=371171&mode=hans
  3. ^ https://avo.alaska.edu/activity/report_getter.php?need=current&id=372951&type=3
  4. ^ https://avo.alaska.edu/activity/report_getter.php?need=current&id=372921&type=3
  5. ^ "National Natural Landmarks - National Natural Landmarks (U.S. National Park Service)". www.nps.gov. Retrieved 2019-03-20.

External links[edit]