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Amchixtam Chaxsxii

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Earthquake

5 km
5 mi
Leaflet U.S. Department of the Interior | U.S. Geological Survey | Policies

Facts

  • Seismically Monitored: No
  • Color Code: UNASSIGNED
  • Alert Level: UNASSIGNED
  • Elevation: -115m (-377ft)
  • Latitude: 51.8475
  • Longitude: 179.82972
  • Smithsonian VNum:
  • Pronunciation:
  • Nearby Towns:
    • Adak 151 mi (243 km) NE
    • Shemya Station 249 mi (401 km) NW
    • Atka 255 mi (410 km) NE
    • Attu Station 288 mi (463 km) NW
    • Nikolski 482 mi (776 km) NE

    Distance from Anchorage: 1306 mi (2101 km)

Description

Amchixtam Chaxsxii is a submarine, polygenetic cone that rises about 580 m from the seafloor and is about 115 m below current sealevel. The base of Amchixtam Chaxsxii is about 4 km across (Jennifer Reynolds, 2004, personal communication.)

Name Origin

"Amchixtam Chaxsxii" is from the Atka dialect of Unangam Tunuu langauge, and was suggested by the local Unangax community as a name for the submarine volcano.

Reported Activity

0 Event Date(s)

Past Activity Legend:
Eruption
Questionable eruption
Non-eruptive activity


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Map References

References

Geologic database of information on volcanoes in Alaska (GeoDIVA), 2022

Cameron, C.E., Crass, S.W., and AVO Staff, eds, 2022, Geologic database of information on volcanoes in Alaska (GeoDIVA): Alaska Division of Geologic and Geophysical Surveys Digital Data Series 20, https://doi.org/10.14509/geodiva, https://doi.org/10.14509/30901.

Alaska Volcano Observatory image database, 2016

Cameron, C.E., and Snedigar, S.F., 2016, Alaska Volcano Observatory image database: Alaska Division of Geological & Geophysical Surveys Digital Data Series 13, https://www.avo.alaska.edu/images/. https://doi.org/10.14509/29689.

Preliminary database of Quaternary vents in Alaska, 2014

Cameron, C.E., and Nye, C.J., 2014, Preliminary database of Quaternary vents in Alaska: Alaska Division of Geological & Geophysical Surveys Miscellaneous Publication 153, 11 p., doi:10.14509/27357 .

Scientists find undersea volcano in Aleutians, 2004

Unknown, 2004, Scientists find undersea volcano in Aleutians: Alaska, v. 70, n. 1, p. 1-3.

New addition to the Aleutian family, 2003

Lubick, Naomi, 2003, New addition to the Aleutian family: Geotimes, v. 48, n. 10, p. 32.

Scientists map state's first known geologically active undersea volcano, 2003

University of Alaska Fairbanks, 2003, Scientists map state's first known geologically active undersea volcano: Fairbanks, Alaska, School of Fisheries and Ocean Science News.

Before an eruption

Ashfall & Preparedness Information

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