Koshelev

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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 51.356°N
  • 156.753°E

  • 1822 m
    5976 ft

  • 300020
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Koshelev.

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

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

Koshelev is the southernmost historically active volcano on the Kamchatka Peninsula. Located SW of the Pauzhetka volcano-tectonic depression and NW of Kambalny volcano, it is a complex group of four stratovolcanoes constructed along an E-W line over a Pleistocene shield volcano. Central Koshelev stratovolcano, the highest peak of the volcanic massif, is Holocene in age; N- and SE-flank craters have also been active during the Holocene. Gorely, a Holocene cinder cone related to regional basaltic monogenetic volcanicm, is located about 12 km NW. The largest Holocene eruption at Koshelev took place from the eastern cone about 6500 years ago. An explosive eruption was reported at the end of the 17th century. Major thermal fields are located in the summit crater of Valentin volcano and on the western flanks of west Koshelev volcano.

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

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
[ 1741 ] [ Unknown ] Uncertain    
1690 ± 10 years Unknown Confirmed 3 Historical Observations SE flank
1350 BCE (?) Unknown Confirmed   Radiocarbon (uncorrected) Northern flank
4050 BCE (?) Unknown Confirmed   Tephrochronology NW flank (Gorely)
4550 BCE (?) Unknown Confirmed   Radiocarbon (uncorrected) Eastern cone

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

Koshelevsky | Kosheleva, Sopka | Chaokhch | Koschelewa | Tschaochtsch

Cones

Feature Name Feature Type Elevation Latitude Longitude
Gorely Pyroclastic cone 479 m 51° 26' 12" N 156° 37' 33" E
Valentin Cone

Thermal

Feature Name Feature Type Elevation Latitude Longitude
Nizhne-Koshelevskie Thermal
Verkhne-Koshelevskie
    Severno-Koshelevskie
Thermal
The compound 2156-m-high Kambalny (left center) and 1812-m-high Koshelev (far right) stratovolcanoes rise SW above the azure waters of Kurile Lake caldera, one of the scenic highlights of the Kamchatka Peninsula. Kambalny is the southernmost large stratovolcano on Kamchatka and Koshelev is its southernmost historically active volcano. Both volcanoes have produced late-stage, very recent lava flows from flank vents on complex older structures. The small island in Kurile Lake caldera is the "Heart of Alaid," a rhyolitic lava dome.

Photo by Nikolai Smelov, 1980 (courtesy of Vera Ponomareva, Inst. Volcanic Geology & Geochemistry, Petropavlovsk).
The compound stratovolcanoes of Kambalny (left) and Koshelev (right), rise beyond the SW shore of scenic Kurile Lake caldera at the southern tip of Kamchatka. Kurile Lake caldera formed in two stages, the first about 41,500 radiocarbon years ago and the second about 8000 years ago during one of Kamchatka's largest Holocene eruptions. The small island (right center) is the "Heart of Alaid," a rhyolitic lava dome. The conical peak on the distant horizon at right center is Alaid stratovolcano, the northernmost of the Kuril Islands.

Photo by Nikolai Smelov, 1996 (courtesy of Vera Ponomareva, Inst. Volcanic Geology & Geochemistry, Petropavlovsk).
The elongated Koshelev stratovolcano (upper right), the southernmost historically active volcano on the Kamchatka Peninsula, rises SW of the Kurile Lake caldera. Koshelev is a complex group of four stratovolcanoes constructed along an E-W line over a Pleistocene shield volcano. The central and highest peak is the youngest. The only historical activity of Koshelev was an explosive eruption at the end of the 17th century. Alaid, the northernmost volcano of the Kuril Islands, is the conical peak on the left horizon.

Photo by Nikolai Smelov, 1996 (courtesy of Vera Ponomareva, Inst. Volcanic Geology & Geochemistry, Petropavlovsk).

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.

Fedotov S A, Masurenkov Y P (eds), 1991. Active Volcanoes of Kamchatka. Moscow: Nauka Pub, 2 volumes.

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

Masurenkov Y P (ed), 1980. Volcanic Center: Structure, Dynamics and Products. Moscow: Nauka Pub, 299 p (in Russian).

Vlodavetz V I, Piip B I, 1959. Kamchatka and Continental Areas of Asia. Catalog of Active Volcanoes of the World and Solfatara Fields, Rome: IAVCEI, 8: 1-110.

Volcano Types

Stratovolcano
Compound
Pyroclastic cone(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
2
855
4,390

Affiliated Databases

Large Eruptions of Koshelev 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.