Photo of this volcano
  • United States
  • Alaska
  • Stratovolcano
  • 800 BCE
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 57.019°N
  • 157.185°W

  • 1345 m
    4412 ft

  • 312100
  • Latitude
  • Longitude

  • Summit

  • Volcano

The Global Volcanism Program has no activity reports for Yantarni.

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

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

The Global Volcanism Program has no synonyms or subfeatures listed for Yantarni.

Eruptive History

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

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
0800 BCE ± 500 years Unknown Confirmed 5 Tephrochronology

Deformation History

Information about Deformation periods will be available soon.

Emission History

There is no Emissions History data is available for Yantarni.

Photo Gallery

Yantarni volcano, a small, 1345-m-high andesitic stratovoclano with no known historical activity, is located on the Alaska Peninsula. This view from the east shows the central lava dome forming the summit. The low knobs on both sides of the dome at the height of the long left-hand ridge are remnants of a large crater breached to the NE, which formed during collapse of the volcano about 2000-3500 years ago.

Photo by Tom Miller, 1985 (U.S. Geological Survey, Alaska Volcano Observatory).
See title for photo information.

Smithsonian Sample Collections Database

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

Affiliated Sites