Davidof

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  • United States
  • Alaska
  • Stratovolcano
  • Unknown - Uncertain Evidence
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 51.97°N
  • 178.33°E

  • 328 m
    1076 ft

  • 311040
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Davidof.

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

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

Five small islands, the largest of which is Davidof, are remnants of a stratovolcano that collapsed during the late Tertiary, forming a 2.7-km-wide caldera. The islands, the highest of which reaches only 328 m above sea level, include Khvostof, Pyramid, Lopy, and Davidof. The latter three islands form the eastern rim of the mostly submarine caldera, sometimes referred to as the "Aleutian Krakatau." The islands were constructed above a roughly 100-m-deep submarine platform extending NW-ward to Segula Island; the floor of the caldera lies 80 m below sea level. The islands are vegetated, but lava flows are recognizable, and Smith et al. (1978) suggested a possible Holocene age for the volcano.

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

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.



Synonyms
Kvostof Island
The broad snow-free island at the right center is Davidof, part of the rim of a largely submerged caldera. The snow-capped peak behind Davidof to the NW is historically active Segula volcano. The snow-capped island in the far left distance is Buldir volcano; the photo was taken from Little Sitkin Island.

Photo by Steve Ebbert, 2000 (U.S. Fish and Wildlife Service).
Davidof Island rises across a strait from the western side of Little Sitkin Island. Five small islands, the largest of which is Davidof, are remnants of a stratovolcano that collapsed during the late Tertiary, forming a 2.7-km-wide caldera. The islands include Khvostof (upper right horizon), Pyramid, Lopy, and Davidof. The latter three islands form the eastern rim of the largely flooded caldera. The islands are vegetated, but lava flows are recognizable, and Holocene activity may have occurred.

Photo by Steve Ebbert, 2000 (U.S. Fish and Wildlife Service).

The following references have all been used during the compilation of data for this volcano, it is not a comprehensive bibliography. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title.

IAVCEI, 1973-80. Post-Miocene Volcanoes of the World. IAVCEI Data Sheets, Rome: Internatl Assoc Volc Chemistry Earth's Interior..

Nelson W H, 1959. Geology of Segula, Davidof, and Khvostof Islands, Alaska. U S Geol Surv Bull, 1028-K: 257-266.

Smith R L, Shaw H R, Luedke R G, Russell S L, 1978. Comprehensive tables giving physical data and thermal energy estimates for young igneous systems of the United States. U S Geol Surv Open-File Rpt, 78-925: 1-25.

Wood C A, Kienle J (eds), 1990. Volcanoes of North America. Cambridge, England: Cambridge Univ Press, 354 p.

Volcano Types

Stratovolcano
Caldera
Maar

Tectonic Setting

Subduction zone
Intermediate crust (15-25 km)

Rock Types

Major
No Data (checked)

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km
0
0
0
0

Affiliated Databases

Large Eruptions of Davidof Information about large Quaternary eruptions (VEI >= 4) is cataloged in the Large Magnitude Explosive Volcanic Eruptions (LaMEVE) database of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).
WOVOdat WOVOdat is a database of volcanic unrest; instrumentally and visually recorded changes in seismicity, ground deformation, gas emission, and other parameters from their normal baselines. It is sponsored by the World Organization of Volcano Observatories (WOVO) and presently hosted at the Earth Observatory of Singapore.
EarthChem EarthChem develops and maintains databases, software, and services that support the preservation, discovery, access and analysis of geochemical data, and facilitate their integration with the broad array of other available earth science parameters. EarthChem is operated by a joint team of disciplinary scientists, data scientists, data managers and information technology developers who are part of the NSF-funded data facility Integrated Earth Data Applications (IEDA). IEDA is a collaborative effort of EarthChem and the Marine Geoscience Data System (MGDS).
Smithsonian Collections Search the Smithsonian's NMNH Department of Mineral Sciences collections database. Go to the "Search Rocks and Ores" tab and use the Volcano Name drop-down to find samples.