Duncan Canal

Photo of this volcano
  • United States
  • Alaska
  • Volcanic field
  • Unknown - Evidence Credible
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 56.5°N
  • 133.1°W

  • 15 m
    49 ft

  • 315050
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Duncan Canal.

The Global Volcanism Program has no Weekly Reports available for Duncan Canal.

The Global Volcanism Program has no Bulletin Reports available for Duncan Canal.

The Global Volcanism Program is not aware of any Holocene eruptions from Duncan Canal. If this volcano has had large eruptions (VEI >= 4) prior to 10,000 years ago, information might be found on the Duncan Canal page in the LaMEVE (Large Magnitude Explosive Volcanic Eruptions) database, a part of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).

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

Photo Gallery


The Castle Islands (center) lie within Duncan Canal on Kupreanof Island in SE Alaska, as seen looking NW from the Lindenberg Peninusla. The Castle Islands mostly consist of Tertiary sedimentary and volcanic rocks, but the northernmost island (far right side of the island group) contains Quaternary basalts. Conspicuous fresh-looking pahoehoe and aa lava flows are also found at the south end of Kupreanof Island, where they overlie glacial till.

Photo by Susan Karl (Alaska Volcano Observatory, U S Geological Survey).
See title for photo information.

Smithsonian Sample Collections Database


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

Affiliated Sites