Photo of this volcano
  • United States
  • Alaska
  • Stratovolcano
  • 1600 BCE
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 51.944°N
  • 176.747°W

  • 1196 m
    3923 ft

  • 311111
  • Latitude
  • Longitude

  • Summit

  • Volcano

The Global Volcanism Program has no activity reports for Moffett.

The Global Volcanism Program has no Weekly Reports available for Moffett.

The Global Volcanism Program has no Bulletin Reports available for Moffett.

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

There is data available for 3 Holocene eruptive periods.

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
1600 BCE (?) Unknown Confirmed   Radiocarbon (corrected) Sandwich Ash deposit
3750 BCE (?) Unknown Confirmed   Radiocarbon (corrected) Intermediate Ash deposit
7850 BCE (?) Unknown Confirmed   Radiocarbon (corrected) Main Ash deposit

Deformation History

There is no Deformation History data available for Moffett.

Emission History

There is no Emissions History data available for Moffett.

Photo Gallery

The slopes of Mount Adagdak provide a dramatic view of Mount Moffett across Andrew Bay to the SW. A narrow spit separates the bay from Andrew Lagoon (left). Andrew Bay volcano is the oldest of three volcanic centers on northern Adak Island. Mount Moffett rises above Adak (out of view to the left), the largest town of the Aleutians, and is a modest-sized, eroded stratovolcano with several flank lava domes. A south-flank lava dome is one of the youngest volcanic features of the northern Adak Island volcanoes.

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

Smithsonian Sample Collections Database

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

Affiliated Sites