Black Peak

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Black Peak
Black Peak.jpg
Elevation 3,385 ft (1,032 m) NGVD 29[1]
Listing List of volcanoes in the United States
Location Alaska Peninsula, Alaska, United States
Coordinates 56°33′11″N 158°47′12″W / 56.5530556°N 158.7866667°W / 56.5530556; -158.7866667Coordinates: 56°33′11″N 158°47′12″W / 56.5530556°N 158.7866667°W / 56.5530556; -158.7866667[2]
Topo map USGS Chignik C-3
Type Stratovolcano
Volcanic arc Aleutian Arc
Last eruption 1900 BCE ± 150 years

Black Peak is a highly eroded stratovolcano comprising a lava dome complex on the Alaska Peninsula of the U.S. state of Alaska.[3] Also called Black Volcano or Sopka Chornaia, the mountain is located within the Lake and Peninsula Borough.[2]

The latest eruption from Black Peak less than 4,000 years ago produced an explosive eruption with a Volcanic Explosivity Index of 6 that created a caldera. Ash flow tuffs and block-and-ash-flow deposits from this explosive eruption traveled down the Ash Creek and Bluff Creek valleys that reach depths of 100 m (328 ft).