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Russia · Stratovolcano

Kozelsky Volcano

Avachinsky

Type
Stratovolcano
Elevation
2717m
Last eruption
2001
Kozelsky Volcano
Photo: Tatyana Rashidova · Public domain · Wikimedia Commons
Type
Stratovolcano
Country
Russia
Region
Northwestern Pacific / Eastern Kamchatka Volcanic Arc
Elevation
2717m
Coordinates
53.256, 158.836
Last eruption
2001
Tectonic setting
Subduction zone / Continental crust (> 25 km)
Landform
Composite
Major rock type
Andesite / Basaltic andesite
Geological summary

Avachinsky, one of Kamchatka's most active volcanoes, rises above Petropavlovsk, Kamchatka's largest city. It began to form during the middle or late Pleistocene, and is flanked to the SE by Kozelsky volcano, which has a large crater breached to the NE. A large collapse scarp open to the SW was created when a major debris avalanche about 30,000-40,000 years ago buried an area of about 500 km2 to the south, underlying the city of Petropavlovsk. Reconstruction of the volcano took place in two stages, the first of which began about 18,000 years before present (BP), and the second 7,000 years BP. Most eruptions have been explosive, with pyroclastic flows and hot lahars being directed primarily to the SW by the collapse scarp, although there have also been relatively short lava flows. The frequent historical eruptions have been similar in style and magnitude to previous Holocene eruptions.

Eruption history

58 recordedGlossary
Summary (VEI over time)
Click a bar to see individual eruptions · Use arrow keys to move between bars, Enter to open
6100 BCE~5830 BCE · 2 eruptions · max VEI 55830 BCE~5560 BCE · 2 eruptions · max VEI ?5560 BCE~5290 BCE · 2 eruptions · max VEI ?4750 BCE~4480 BCE · 1 eruptions · max VEI 44480 BCE~4210 BCE · 4 eruptions · max VEI 54210 BCE~3940 BCE · 2 eruptions · max VEI ?3940 BCE~3670 BCE · 2 eruptions · max VEI 43670 BCE~3400 BCE · 2 eruptions · max VEI ?3400 BCE~3130 BCE · 1 eruptions · max VEI 53130 BCE~2860 BCE · 2 eruptions · max VEI ?2860 BCE~2590 BCE · 1 eruptions · max VEI ?2590 BCE~2320 BCE · 2 eruptions · max VEI 42320 BCE~2049 BCE · 2 eruptions · max VEI ?1779 BCE~1509 BCE · 1 eruptions · max VEI ?1509 BCE~1239 BCE · 2 eruptions · max VEI 5159 BCE~111 · 1 eruptions · max VEI ?381~651 · 1 eruptions · max VEI ?651~921 · 2 eruptions · max VEI ?921~1191 · 1 eruptions · max VEI ?1191~1461 · 2 eruptions · max VEI ?1461~1731 · 1 eruptions · max VEI ?1731~2001 · 22 eruptions · max VEI 46100 BCE4210 BCE2049 BCE159 BCE1731

Detailed timeline

  1. 2001VEI 1Observed
    2001-10-05 – 2001-10-05
  2. 1991VEI 2Observed
    1991-01-13 – 1991-01-30
  3. 1945VEI 4Observed
    1945-02-25 – 1945-02-25
  4. 1938VEI 3Observed
    1938-03-06 – 1938-12-01
  5. 1926VEI 4Observed
    1926-03-27 – 1927-03-14
  6. 1910VEI ?Method not stated
    1910-07-02 – end unknown
  7. 1909VEI 2Observed
    1909-08-16 – end unknown
  8. 1901VEI 2Observed
    1901-07-07 – 1901-07-13
  9. 1894VEI 2Observed
    1894-10-16 – 1895-02-16
  10. 1881VEI 2Observed
    1881-07-02 – end unknown
  11. 1878VEI 2Observed
    1878-07-02 – end unknown
  12. 1855VEI 2Observed
    1855-05-28 – 1855-09-04
  13. 1854VEI 2Observed
    1854-08-13 – end unknown
  14. 1853VEI 2Observed
    1853-12-21 – 1854-03-14
  15. 1851VEI 2Observed
    1851-11-26 – 1852-02-14
  16. 1837VEI ?Method not stated
    1837-07-02 – end unknown
  17. 1828VEI 2Observed
    1828-04-17 – end unknown
  18. 1827VEI 4Observed
    1827-06-27 – 1827-06-29
  19. 1789VEI ?Method not stated
    1789 – end unknown
  20. 1779VEI 3Observed
    1779-06-15 – 1779-06-16
  21. 1772VEI 2Observed
    1772 – end unknown
  22. 1737VEI 3Observed
    1737-08 – 1737-08
  23. 1550VEI ?Geological estimate
    1550 – end unknown
  24. 1400VEI ?Geological estimate
    1400 – end unknown
  25. 1200VEI ?Geological estimate
    1200 – end unknown
  26. 1100VEI ?Geological estimate
    1100 – end unknown
  27. 900VEI ?Geological estimate
    900 – end unknown
  28. 700VEI ?Geological estimate
    700 – end unknown
  29. 400VEI ?Geological estimate
    400 – end unknown
  30. 100VEI ?Geological estimate
    100 – end unknown
  31. 1350 BCEVEI 5Geological estimate
    1350 BCE – end unknown
  32. 1500 BCEVEI 5Geological estimate
    1500 BCE – end unknown
  33. 1700 BCEVEI ?Geological estimate
    1700 BCE – end unknown
  34. 2100 BCEVEI ?Geological estimate
    2100 BCE – end unknown
  35. 2300 BCEVEI ?Geological estimate
    2300 BCE – end unknown
  36. 2500 BCEVEI ?Geological estimate
    2500 BCE – end unknown
  37. 2530 BCE (±300 yrs)VEI 4Geological estimate
    2530 BCE – end unknown
  38. 2650 BCEVEI ?Geological estimate
    2650 BCE – end unknown
  39. 2900 BCEVEI ?Geological estimate
    2900 BCE – end unknown
  40. 2950 BCEVEI ?Geological estimate
    2950 BCE – end unknown
  41. 3200 BCE (±150 yrs)VEI 5Geological estimate
    3200 BCE – end unknown
  42. 3400 BCEVEI ?Geological estimate
    3400 BCE – end unknown
  43. 3500 BCEVEI ?Geological estimate
    3500 BCE – end unknown
  44. 3700 BCEVEI ?Geological estimate
    3700 BCE – end unknown
  45. 3790 BCE (±100 yrs)VEI 4Geological estimate
    3790 BCE – end unknown
  46. 4050 BCEVEI ?Geological estimate
    4050 BCE – end unknown
  47. 4200 BCEVEI ?Geological estimate
    4200 BCE – end unknown
  48. 4250 BCEVEI ?Geological estimate
    4250 BCE – end unknown
  49. 4340 BCE (±75 yrs)VEI 5Geological estimate
    4340 BCE – end unknown
  50. 4400 BCEVEI ?Geological estimate
    4400 BCE – end unknown
  51. 4460 BCE (±100 yrs)VEI 4Geological estimate
    4460 BCE – end unknown
  52. 4550 BCE (±200 yrs)VEI 4Geological estimate
    4550 BCE – end unknown
  53. 5450 BCEVEI ?Geological estimate
    5450 BCE – end unknown
  54. 5500 BCEVEI ?Geological estimate
    5500 BCE – end unknown
  55. 5600 BCEVEI ?Geological estimate
    5600 BCE – end unknown
  56. 5700 BCEVEI ?Geological estimate
    5700 BCE – end unknown
  57. 5980 BCE (±100 yrs)VEI 5Geological estimate
    5980 BCE – end unknown
  58. 6100 BCEVEI ?Geological estimate
    6100 BCE – end unknown

Nearby volcanoes

External links

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