Uksichan

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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 56.08°N
  • 158.38°E

  • 1692 m
    5550 ft

  • 300350
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Uksichan.

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

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

Uksichan is a massive, gently dipping shield volcano that covers 1850 sq km. Its 300 cu km volume makes it the largest volcano of the Sredinny Range. Uksichan is truncated by a 12-km-wide summit caldera that is mostly filled by several dacitic lava domes. The largest of these rises 900 m above the caldera floor to form the 1692-m-high summit of the volcano. Initial lava flows traveled up to 15-20 km, but later flows are thicker and more viscous. In contrast to the western and NW flanks, which consist exclusively of lava flows, the eastern and SE flanks contain substantial amounts of pyroclastic material. Late-Quaternary cinder cones and Icelandic-type shield volcanoes are located on the flanks of the volcano. Early geologic studies in the Sredinny Range (Ogorodov et al., 1972) identified numerous Holocene eruptive centers based primarily on morphological criteria. However, later work has suggested that Sredinny Range volcanoes are less mantled by Holocene tephras than eastern Kamchatka volcanoes and therefore appear more youthful, so that Holocene eruptions are uncertain for many of these Sredinny Range eruptive vents.

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



Cones
Feature Name Feature Type Elevation Latitude Longitude
Bunanya Shield volcano 1527 m
Chingeingein Shield volcano 1922 m 56° 9' 0" N 158° 18' 0" E
Kuyup Shield volcano 1453 m 56° 8' 0" N 158° 26' 0" E
Nubalykich Shield volcano
Zbev-Bunanya Shield volcano 1530 m
Arcuate green valleys in the center of this NASA Landsat composite image (with north to the top) drain the 12-km-wide summit caldera of Uksichan volcano. This massive, gently dipping shield volcano covers 1850 sq km and is the largest volcano of the Sredinny Range. Several dacitic lava domes occupy the caldera floor. Late-Quaternary cinder cones and Icelandic-type shield volcanoes are located on the flanks of the volcano. The largest of these, the snow-dappled darker area above and to the left of the caldera, lies on the NW caldera rim.

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.

Erlich E N, 1986. Geology of the calderas of Kamchatka and Kurile Islands with comparison to calderas of Japan and the Aleutians, Alaska. U S Geol Surv Open-File Rpt, 86-291: 1-300.

Erlich E N, Gorshkov G S (eds), 1979. Quaternary volcanism and tectonics in Kamchatka. Bull Volc, 42:1-4.

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

Ogorodov N V, Kozhemyaka N N, Vazheevskaya A A, Ogorodov A S, 1972. Volcanoes and the Quaternary Volcanism of the Sredinny Ridge in Kamchatka. Moscow: Nauka Pub, 190 p (in Russian).

Ponomareva V V, 2001. . (pers. comm.).

Volcano Types

Shield
Caldera
Lava dome(s)
Shield(s)

Tectonic Setting

Subduction zone
Continental crust (> 25 km)

Rock Types

Major
Basalt / Picro-Basalt
Andesite / Basaltic Andesite
Minor
Dacite

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km
0
6
67
4,416

Affiliated Databases

Large Eruptions of Uksichan 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.