Hudson Mountains

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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 74.33°S
  • 99.42°W

  • 749 m
    2457 ft

  • 390028
  • Latitude
  • Longitude

  • Summit

  • Volcano

The Global Volcanism Program has no activity reports for Hudson Mountains.

The Global Volcanism Program has no Weekly Reports available for Hudson Mountains.

The Global Volcanism Program has no Bulletin Reports available for Hudson Mountains.

Volcano Types

Pyroclastic cone(s)

Tectonic Setting

Continental crust (> 25 km)

Rock Types

Basalt / Picro-Basalt
Trachybasalt / Tephrite Basanite


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

Geological Summary

The Hudson Mountains, located along the Walgreen Coast in Antarctica's western Ellsworth Land, contain many only slightly eroded parasitic cones forming nunataks protruding above the Antarctic icecap. The cinder cones apparently rest on three extensively eroded Miocene stratovolcanoes, Teeters Nunatak, Mount Moses, and Mount Manthe. Subaerial basaltic lava flows dominate, but subglacial or subaqueous tuffs and lava flows are also present. A tephra layer from an eruption of a subglacial volcano in the Hudson Mountains was dated from ice thickness at about 200 BCE. The possible presence of steam was reported at one of the Hudson volcanoes during 1974. Satellite data suggested that an eruption of Webber Nunatak took place during 1985, although this has not been confirmed (LeMasurier and Thomson, 1990).

Eruptive History

Summary of Holocene eruption dates and Volcanic Explosivity Indices (VEI).

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
[ 1985 ] [ Unknown ] Uncertain     Webber Nunatak
0210 BCE ± 200 years Unknown Confirmed 4 Ice Core Hudson Mts Subglacial Volcano

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.


Feature Name Feature Type Elevation Latitude Longitude
Evans Knoll Cone 74° 50' 0" S 100° 20' 0" W
Hodgson Nunatak Cone 74° 17' 0" S 100° 4' 0" W
Inman Nunatak Cone 74° 48' 0" S 98° 54' 0" W
Kenfield Nunatak Cone 73° 45' 0" S 99° 3' 0" W
Maish Nunatak Cone 232 m 74° 35' 0" S 99° 32' 0" W
Manthe, Mount Stratovolcano 567 m 74° 47' 0" S 99° 21' 0" W
Meyers Nunatak Cone 74° 53' 0" S 98° 44' 0" W
Moses, Mount Stratovolcano 749 m 74° 33' 0" S 99° 8' 0" W
Nickens, Mount Cone 73° 55' 0" S 100° 20' 0" W
Pryor Cliff Cone 73° 52' 0" S 100° 0' 0" W
Shepherd Dome Cone 74° 51' 0" S 99° 30' 0" W
Siren Rock Cone 74° 32' 0" S 98° 26' 0" W
Slusher Nunatak Cone 536 m 74° 27' 0" S 99° 12' 0" W
Teeters Nunatak Stratovolcano 617 m 74° 12' 0" S 100° 0' 0" W
Tighe Rock Cone 212 m 74° 26' 0" S 100° 4' 0" W
Velie Nunatak Cone 574 m 74° 23' 0" S 99° 16' 0" W
Webber Nunatak Cone 495 m 74° 46' 0" S 99° 48' 0" W

Photo Gallery

Nunataks in the southern Hudson Mountains rise above the ice surface in this oblique aerial view from the west. Webber Nunatak is the left foreground, with Mount Manthe left of center (also with exposed outcrops), and Shepherd Dome the larger and uppermost of the two nunataks at the right. Several other smaller nunataks are visible in the foreground and faintly seen in the background.

U. S. Navy photo TMA 2035 F31 203.


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.

Corr H F J, Vaughan D G, 2008. A recent volcanic eruption beneath the West Antarctica ice sheet. Nature Geosci, 1: 122-125.

Craddock C, Bastien T W, Rutford R H, 1964. Geology of the Jones Mountains area. In: Adie R J (ed) {Antarctic Geol, Proc 1st Internatl Symp Antarctic Geol}, Amsterdam: Elsevier, p 172-187.

Dort W, 1972. Late Cenozoic volcanism in Antarctica. In: Adie R J (ed) {Antarctic Geol and Geophys}, IUGS Ser-B(1): 645-652.

LeMasurier W E, 1972. Volcanic record of Cenozoic glacial history Marie Byrd Land. In: Adie R J (ed) {Antarctic Geol and Geophys}, IUGS Ser-B(1): 251-260.

LeMasurier W E, Thomson J W (eds), 1990. Volcanoes of the Antarctic Plate and Southern Oceans. Washington, D C: Amer Geophys Union, 487 p.

Affiliated Databases

Large Eruptions of Hudson Mountains 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.