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Russia · Stratovolcano

Koshelev

Type
Stratovolcano
Elevation
1822m
Last eruption
1690
Koshelev (upper right) is one of the southernmost active volcanoes on the Kamchatka Peninsula, seen here SW of the Kurile Lake caldera. It contains four main cones constructed along an E-W line over a Pleistocene edifice with the central and highest peak being the youngest. An explosive eruption occurred at the end of the 17th century. Alaid, the northernmost volcano of the Kuril Islands, is the peak on the left horizon.
Koshelev (upper right) is one of the southernmost active volcanoes on the Kamchatka Peninsula, seen here SW of the Kurile Lake caldera. It contains four main cones constructed along an E-W line over a Pleistocene edifice with the central and highest peak being the youngest. An explosive eruption occurred at the end of the 17th century. Alaid, the northernmost volcano of the Kuril Islands, is the peak on the left horizon. · Photo: Photo by Nikolai Smelov, 1996 (courtesy of Vera Ponomareva, Inst. Volcanic Geology & Geochemistry, Petropavlovsk).
Type
Stratovolcano
Country
Russia
Region
Northwestern Pacific / Kuril Volcanic Arc
Elevation
1822m
Coordinates
51.356, 156.753
Last eruption
1690
Tectonic setting
Subduction zone / Continental crust (> 25 km)
Landform
Composite
Major rock type
Basalt / Picro-basalt
Geological summary

Koshelev is at the southern end of the Kamchatka Peninsula, 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 volcanism, is located about 12 km NW. The largest Holocene eruption took place from the eastern cone about 6,500 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.

Eruption history

5 recordedGlossary
Summary (VEI over time)
Click a bar to see individual eruptions · Use arrow keys to move between bars, Enter to open
4550 BCE~4340 BCE · 1 eruptions · max VEI ?4131 BCE~3921 BCE · 1 eruptions · max VEI ?1404 BCE~1195 BCE · 1 eruptions · max VEI ?1531~1741 · 2 eruptions · max VEI 34550 BCE3082 BCE1404 BCE631531

Detailed timeline

  1. 1741VEI ?Method not stated
    1741 – end unknown
  2. 1690 (±10 yrs)VEI 3Observed
    1690 – end unknown
    SE flank
  3. 1350 BCEVEI ?Geological estimate
    1350 BCE – end unknown
    Northern flank
  4. 4050 BCEVEI ?Geological estimate
    4050 BCE – end unknown
    NW flank (Gorely)
  5. 4550 BCEVEI ?Geological estimate
    4550 BCE – end unknown
    Eastern cone

Nearby volcanoes

External links

⚠ For reference only. Not for emergency response.