Bolshoi-Kekuknaysky

Photo of this volcano
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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 56.47°N
  • 157.8°E

  • 1401 m
    4595 ft

  • 300360
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Bolshoi-Kekuknaysky.

The Global Volcanism Program has no Weekly Reports available for Bolshoi-Kekuknaysky.

The Global Volcanism Program has no Bulletin Reports available for Bolshoi-Kekuknaysky.

Bolshoi (Bolshoy) and Kekuknaysky are two large, partially overlapping basaltic shield volcanoes located NW and NNW, respectively, of Uksichan volcano. The massive shield volcanoes are of Pleistocene age and were constructed west of the axis of the Sredinny Range. Hawaiian-type calderas are located at the summit of the volcanoes, and numerous youthful cinder cones dot their flanks. The summit caldera of Bolshoi is breached by four radial valleys, whereas the 6-km-wide caldera of Kekuknaysky (also known as Leningradets volcano) is breached to the north. Young cinder cones and lava flows are particularly abundant on the NE flank of Kekuknaysky volcano. Kekuk crater on the lower northern flank erupted about 7200 years ago.

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

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
5310 BCE ± 100 years Unknown Confirmed 3 Radiocarbon (uncorrected) N flank of Kekuknaysky (Kekuk Crater)

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
Bolshoy-Kekuknaysky


Cones
Feature Name Feature Type Elevation Latitude Longitude
Bolshoi
    Boljshoy
Shield volcano 1301 m 56° 28' 0" N 157° 48' 0" E
Kekuknaysky
    Leningradets
Shield volcano 1401 m 56° 29' 0" N 158° 1' 0" E


Craters
Feature Name Feature Type Elevation Latitude Longitude
Kekuk Crater Crater 728 m 56° 34' 0" N 158° 2' 0" E
Two overlapping shield volcanoes are located NW of Uksichan volcano, west of the axis of the Sredinny Range. Bolshoi (lower left), also spelled Bolshoy, is breached by four radial valleys and is the more eroded of the two volcanoes. Kekuknaysky (right-center), also known as Leningradets volcano, contains a 6-km-wide Hawaiian-type caldera breached to the north. Young cinder cones and lava flows are particularly abundant on the NE flank of Kekuknaysky volcano, forming the broad less vegetated area outside the caldera.

NASA Landsat7 image (worldwind.arc.nasa.gov)
Kekuk crater on the lower northern flank of the Bolshoi-Kekuknaysky volcanic complex erupted about 7200 years ago. The 1-km-wide crater formed on the flank of a lava dome (left) which likely was erupted immediately prior to formation of the crater. Bolshoi (Bolshoy) and Kekuknaysky are two large, partially overlapping Pleistocene basaltic shield volcanoes located NW and NNW, respectively, of Uksichan volcano and are dotted with numerous youthful cinder cones on their flanks.

Copyrighted photo by Adam Kirilenko, 2003.

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, 1985. . (pers. comm.).

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).

Pevzner M M, 2004b. New data on Holocene monogenetic volcanism of the northern Kamchatka: ages and space distribution. IV Internatl Biennial Workshop on Subduction Processes, Petropavlovsk-Kamchatsky, August 21-27, 2004, Abs.

Ponomareva V, Melekestsev I, Braitseva O, Churikova T, Pevzner M, Sulerzhitsky L, 2007b. Late Pleistocene-Holocene volcanism on the Kamchatka Peninsula, northwest Pacific region. In: Eichelberger J, Gordeev E, Izbekov P, Kasahara M, Lees J (eds), Volcanism and Subduction: the Kamchatka Region, {Amer Geophys Union, Geophys Monogr}, 172: 165-198.

Volcano Types

Shield(s)
Caldera(s)
Cinder cone(s)

Tectonic Setting

Subduction zone
Continental crust (> 25 km)

Rock Types

Major
Basalt / Picro-Basalt
Andesite / Basaltic Andesite
Dacite

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km
0
0
158
2,779

Affiliated Databases

Large Eruptions of Bolshoi-Kekuknaysky 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.