Black Peak

Photo of this volcano
  • United States
  • Alaska
  • Stratovolcano
  • 1900 BCE
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 56.552°N
  • 158.785°W

  • 1032 m
    3385 ft

  • 312080
  • Latitude
  • Longitude

  • Summit

  • Volcano

The Global Volcanism Program has no activity reports for Black Peak.

The Global Volcanism Program has no Weekly Reports available for Black Peak.

The Global Volcanism Program has no Bulletin Reports available for Black Peak.

This compilation of synonyms and subsidiary features may not be comprehensive. Features are organized into four major categories: Cones, Craters, Domes, and Thermal Features. Synonyms of features appear indented below the primary name. In some cases additional feature type, elevation, or location details are provided.

Eruptive History

Summary of Holocene eruption dates and Volcanic Explosivity Indices (VEI).

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
1900 BCE ± 150 years Unknown Confirmed 6 Tephrochronology

Deformation History

Information about Deformation periods will be available soon.

Emission History

There is no Emissions History data is available for Black Peak.

Photo Gallery

The outcrop seen here is not a sand dune, but a thick ash-flow deposit from an eruption that formed a small caldera on the eastern edge of Black Peak volcano. This major eruption occurred about 4200 to 4700 years ago, and filled adjacent valleys to depths of up to 100 m. The ice-free caldera of the highly eroded Black Peak volcano contains two small lakes and a complex of nested dacitic lava domes.

Photo by Tom Miller, 1985 (Alaska Volcano Observatory, U.S. Geological Survey).
See title for photo information.
Most of the 3.5-km-wide caldera floor of Black Peak volcano, located NW of Chignik Bay, is occupied by a complex of nested dacitic lava domes, seen here in an aerial view within the caldera. The ice-free mid-Holocene caldera contains two small lakes. Ash-flow tuffs and block-and-ash-flow deposits from the >10-cu-km caldera-forming eruption, which occurred less than about 4000 years ago, fill the Ash Creek and Bluff Creek valleys to the west and north.

Photo courtesy of Alaska Volcano Observatory, U.S. Geological Survey, 1979.
See title for photo information.

Smithsonian Sample Collections Database

There are no samples for Black Peak in the Smithsonian's NMNH Department of Mineral Sciences Rock and Ore collection.

Affiliated Sites