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Gorely

Caldera · Russia · 1799m

Part of the summit complex of Gorely is seen in this view from the S. It was constructed within a large caldera and contains 11 summit and 30 flank craters. Historical eruptions, largely consisting of moderate Vulcanian and phreatic explosions, have commonly produced ash plumes that are visible from Petropavlovsk, Kamchatka's largest city.
Part of the summit complex of Gorely is seen in this view from the S. It was constructed within a large caldera and contains 11 summit and 30 flank craters. Historical eruptions, largely consisting of moderate Vulcanian and phreatic explosions, have commonly produced ash plumes that are visible from Petropavlovsk, Kamchatka's largest city. · Photo: Photo by Phil Austin, University of Southern Florida, 1992 (courtesy of Pavel Kepezhinskas). · Wikimedia Commons
Type
Caldera
Country
Russia
Region
Northwestern Pacific Volcanic Regions / Kuril Volcanic Arc
Elevation
1799m
Coordinates
52.555, 158.036
Last eruption
2010
Tectonic setting
Subduction zone / Continental crust (> 25 km)
Landform
Composite
Major rock type
Basalt / Picro-Basalt
Geological summary

Gorely volcano consists of five small overlapping stratovolcanoes constructed along a WNW-ESE line within a large 9 x 13 km caldera. The caldera formed about 38,000-40,000 years ago accompanied by the eruption of about 100 km3 of tephra. The massive complex includes about 40 cinder cones, some of which contain acid or freshwater crater lakes; three major rift zones cut the complex. Another Holocene stratovolcano is located on the SW flank. Activity during the Holocene was characterized by frequent mild-to-moderate explosive eruptions along with a half dozen episodes of major lava extrusion. Early Holocene explosive activity, along with lava flows filled in much of the caldera. Quiescent periods became longer between 6,000 and 2,000 years ago, after which the activity was mainly explosive. About 600-650 years ago intermittent strong explosions and lava flow effusion accompanied frequent eruptions. Historical eruptions have consisted of moderate Vulcanian and phreatic explosions.

From Wikipedia

Gorely is a volcano located in the southern part of the Kamchatka Peninsula, Russia. It consists of five overlapping stratovolcanoes and is one of the most active in southern Kamchatka. Gorely is a large, long-lived shield-type volcano that is currently in an eruptive phase. Prior eruptions occurred in 1980-81 and 1984–86.Several complexes compose the overall volcanic structure:ancient Pra-Gorely volcano which measures 20–25 km in diameter; a 12 km diameter caldera; thick stratum of ignimbrites totaling a volume of 100 km3; post-caldera eruption cinder cones; modern edifice – “Young Gorely” composed of three large superimposed cones and 11 associated craters forming a NW-SE trending intra-caldera ridgeline; a complex of 40 modern subsidiary cones on the slopes of “Young Gorely”.

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Eruption history

Summary (VEI over time)
Click a bar to see individual eruptions
7400 BCE~7086 BCE · 2 eruptions · max VEI 26145 BCE~5832 BCE · 2 eruptions · max VEI 35832 BCE~5518 BCE · 1 eruptions · max VEI 35518 BCE~5204 BCE · 3 eruptions · max VEI 35204 BCE~4891 BCE · 2 eruptions · max VEI 34891 BCE~4577 BCE · 4 eruptions · max VEI 34577 BCE~4263 BCE · 4 eruptions · max VEI 34263 BCE~3950 BCE · 2 eruptions · max VEI 23950 BCE~3636 BCE · 1 eruptions · max VEI 23636 BCE~3322 BCE · 3 eruptions · max VEI 33009 BCE~2695 BCE · 1 eruptions · max VEI 22695 BCE~2381 BCE · 1 eruptions · max VEI 32381 BCE~2068 BCE · 2 eruptions · max VEI 22068 BCE~1754 BCE · 2 eruptions · max VEI 2813 BCE~499 BCE · 1 eruptions · max VEI 0499 BCE~186 BCE · 1 eruptions · max VEI 3186 BCE~128 · 1 eruptions · max VEI 3128~442 · 2 eruptions · max VEI 3442~755 · 1 eruptions · max VEI 3755~1069 · 1 eruptions · max VEI 31069~1383 · 1 eruptions · max VEI 21696~2010 · 15 eruptions · max VEI 37400 BCE5204 BCE2695 BCE499 BCE1696

Detailed timeline

  1. 2010VEI 1Observed
    2010-06-06 – 2010-06-22
    Summit crater
  2. 1984VEI 2Observed
    1984-08-04 – 1986-09-21
  3. 1980VEI 3Observed
    1980-06-15 – 1981-07-03
  4. 1961VEI 2Observed
    1961-01-16 – Ongoing
  5. 1947VEI 2Observed
    1947-12 – Ongoing
  6. 1932VEI ?Geological estimate
    1932 – Ongoing
  7. 1931VEI 2Observed
    1931-05 – 1931-07-15
  8. 1930VEI 3Observed
    1930-09 – 1931-01-17
  9. 1929VEI 3Observed
    1929-09-01 – 1930-04
  10. 1869VEI 2Observed
    1869 – Ongoing
  11. 1855VEI 2Geological estimate
    1855-04 – Ongoing
  12. 1832VEI 3Observed
    1832-02 – Ongoing
  13. 1828VEI 3Observed
    1828-06 – Ongoing
  14. 1821VEI ?Geological estimate
    1821 – Ongoing
  15. 1750 (±50 yrs)VEI 2Geological estimate
    1750 – Ongoing
  16. 1330 (±25 yrs)VEI 2Geological estimate
    1330 – Ongoing
  17. 1030 (±25 yrs)VEI 3Geological estimate
    1030 – Ongoing
  18. 550VEI 3Geological estimate
    550 – Ongoing
  19. 250VEI 3Geological estimate
    250 – Ongoing
  20. 200VEI 3Geological estimate
    200 – Ongoing
  21. 50VEI 3Geological estimate
    50 – Ongoing
  22. 350 BCEVEI 3Geological estimate
    BCE 350 – Ongoing
  23. 700 BCE (±850 yrs)VEI 0Geological estimate
    BCE 700 – Ongoing
  24. 2000 BCEVEI 2Geological estimate
    BCE 2000 – Ongoing
  25. 2050 BCEVEI 2Geological estimate
    BCE 2050 – Ongoing
  26. 2200 BCEVEI 2Geological estimate
    BCE 2200 – Ongoing
  27. 2250 BCEVEI 2Geological estimate
    BCE 2250 – Ongoing
  28. 2450 BCEVEI 3Geological estimate
    BCE 2450 – Ongoing
  29. 2750 BCEVEI 2Geological estimate
    BCE 2750 – Ongoing
  30. 3450 BCEVEI 3Geological estimate
    BCE 3450 – Ongoing
  31. 3550 BCEVEI 0Geological estimate
    BCE 3550 – Ongoing
  32. 3580 BCE (±100 yrs)VEI 2Geological estimate
    BCE 3580 – Ongoing
  33. 3900 BCEVEI 2Geological estimate
    BCE 3900 – Ongoing
  34. 3950 BCEVEI 2Geological estimate
    BCE 3950 – Ongoing
  35. 4150 BCEVEI 2Geological estimate
    BCE 4150 – Ongoing
  36. 4300 BCE (±150 yrs)VEI 0Geological estimate
    BCE 4300 – Ongoing
  37. 4350 BCEVEI 3Geological estimate
    BCE 4350 – Ongoing
  38. 4450 BCEVEI 2Geological estimate
    BCE 4450 – Ongoing
  39. 4500 BCEVEI 2Geological estimate
    BCE 4500 – Ongoing
  40. 4600 BCEVEI 2Geological estimate
    BCE 4600 – Ongoing
  41. 4650 BCEVEI 3Geological estimate
    BCE 4650 – Ongoing
  42. 4700 BCEVEI 2Geological estimate
    BCE 4700 – Ongoing
  43. 4750 BCEVEI 3Geological estimate
    BCE 4750 – Ongoing
  44. 4950 BCEVEI 2Geological estimate
    BCE 4950 – Ongoing
  45. 5150 BCEVEI 3Geological estimate
    BCE 5150 – Ongoing
  46. 5300 BCEVEI 2Geological estimate
    BCE 5300 – Ongoing
  47. 5450 BCEVEI 3Geological estimate
    BCE 5450 – Ongoing
  48. 5500 BCEVEI 3Geological estimate
    BCE 5500 – Ongoing
  49. 5650 BCEVEI 3Geological estimate
    BCE 5650 – Ongoing
  50. 5950 BCEVEI 3Geological estimate
    BCE 5950 – Ongoing
  51. 6050 BCEVEI 0Geological estimate
    BCE 6050 – Ongoing
  52. 7250 BCEVEI 2Geological estimate
    BCE 7250 – Ongoing
  53. 7400 BCE (±150 yrs)VEI 0Geological estimate
    BCE 7400 – Ongoing

External links

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