St. Michael

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  • United States
  • Alaska
  • Shield(s)
  • Unknown - Undated Evidence
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 63.45°N
  • 162.12°W

  • 715 m
    2345 ft

  • 314040
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for St. Michael.

The Global Volcanism Program has no Weekly Reports available for St. Michael.

The Global Volcanism Program has no Bulletin Reports available for St. Michael.

The St. Michael volcanic field, at the south end of Norton Sound, covers all of St. Michael and Stuart Islands with more than 55 cones and craters. Broad low shield volcanoes underlie the younger cones, and maar volcanoes are located at the SW part of the volcanic field, which covers >3000 sq km and extends inland along the Golsovia and Kogok rivers. The youngest activity is of Holocene age, and native tradition says that a village was submerged by lava three times.

The Global Volcanism Program is not aware of any Holocene eruptions from St. Michael. If this volcano has had large eruptions (VEI >= 4) prior to 10,000 years ago, information might be found on the St. Michael 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

Saint Michael

Cones

Feature Name Feature Type Elevation Latitude Longitude
Crater Mountain Cone 195 m 63° 23' 0" N 162° 3' 0" W
Sisters, the Cone
St. Michael Mountain
    Saint Michael Mountain
Cone 137 m 63° 28' 0" N 162° 11' 0" W
Stephens Hill Cone 103 m 63° 32' 0" N 162° 15' 0" W
Stuart Hill Shield volcano 146 m 63° 36' 0" N 162° 26' 0" W
West Hill Cone 89 m 63° 35' 0" N 162° 36' 0" W
The St. Michael volcanic field consists of more than 55 cones and craters occupying Stuart Island (upper left), St. Michael Island (forming the apparent peninsula at left-center, and areas inland. Broad low shield volcanoes underlie the younger cones, and maar volcanoes are located at the SW part of the volcanic field, which covers >3000 sq km. Light-colored young lava flows can be seen at the lower right originating from "The Sisters" area. Native tradition says that a village was submerged by lava three times.

NASA Landsat7 image (worldwind.arc.nasa.gov)

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..

Moffit F H, 1905. The Fairhaven gold placers, Seward, Alaska. U S Geol Surv Bull, 247: 34.

Smith R L, Shaw H R, 1975. Igneous-related geothermal systems. U S Geol Surv Circ, 726: 58-83.

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

Volcano Types

Shield(s)
Pyroclastic cone(s)
Maar(s)

Tectonic Setting

Intraplate
Continental crust (> 25 km)

Rock Types

Major
Basalt / Picro-Basalt
Trachybasalt / Tephrite Basanite

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km
662
662
662
2,625

Affiliated Databases

Large Eruptions of St. Michael 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.