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Koniuji

Photo of this volcano
  • United States
  • Alaska
  • Stratovolcano
  • 1150 BCE
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 52.22°N
  • 175.13°W

  • 273 m
    896 ft

  • 311140
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Koniuji.

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

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

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
1150 BCE ± 1900 years Unknown Confirmed   Ar/Ar
2650 BCE ± 2000 years Unknown Confirmed   Ar/Ar
3850 BCE ± 3100 years Unknown Confirmed   Ar/Ar
Deformation History

There is no Deformation History data available for Koniuji.

Emission History

There is no Emissions History data available for Koniuji.

Photo Gallery

A steep, arcuate cliff drops nearly 300 m to the coast on the western side of Koniuji Island. This very small, 1 x 1.5 km wide island, located between Atka Island and Kasatochi volcano, is the emergent top of a mostly submarine volcano. A NE-trending fault cuts the SE side of the island (right). Despite its apparently dissected condition, Holocene lava flows and domes have been dated. Reports of eruptive activity may be erroneous and are considered to refer to eruptions of the relatively undissected Kasatochi volcano to the west.

Photo by E. Bailey, 1982 (U.S. Fish and Wildlife Service).
See title for photo information.
GVP Map Holdings

The maps shown below have been scanned from the GVP map archives and include the volcano on this page. Clicking on the small images will load the full 300 dpi map. Very small-scale maps (such as world maps) are not included. The maps database originated over 30 years ago, but was only recently updated and connected to our main database. We welcome users to tell us if they see incorrect information or other problems with the maps; please use the Contact GVP link at the bottom of the page to send us email.

Title: Atka
Publisher: US Geological Survey
Country: United States
Year: 1982
Series: Radar Image Mosaic
Map Type: Photo (Radar)
Scale: 1:250,000
Map of Atka
Title: Magnetic Map of N Pacific Ocean
Publisher: US Department of Commerce, NOAA National Ocean Service
Country: United States
Year: 1973
Series: Seamap
Map Type: Geophysical (Magnetic)
Scale: 1:1,000,000
Map of Magnetic Map of N Pacific Ocean
Title: Gravity Map of N Pacific Ocean
Publisher: US Department of Commerce, NOAA National Ocean Service
Country: United States
Year: 1973
Series: Seamap
Map Type: Geophysical (Gravity)
Scale: 1:1,000,000
Map of Gravity Map of N Pacific Ocean
Title: Atka
Publisher: US Geological Survey
Country: United States
Year: 1952
Series: AK Recon Topo 250
Map Type: Topographic
Scale: 1:250,000
Map of Atka
Smithsonian Sample Collections Database

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

Affiliated Sites