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Bezymjannyj

Bezymianny

Stratovulcano · Russia · 2882 m

A lava dome fills much of the large horseshoe-shaped crater on the ESE side of Bezymianny in this late-1980s view from the SE. The crater formed during an eruption in 1955-56, which was similar to that of Mount St. Helens in 1980 with flank collapse and lateral blast components. Prior to this eruption Bezymianny had been considered extinct. Subsequent episodic lava dome growth, accompanied by intermittent explosive activity and pyroclastic flows, has largely filled the 1956 crater.
A lava dome fills much of the large horseshoe-shaped crater on the ESE side of Bezymianny in this late-1980s view from the SE. The crater formed during an eruption in 1955-56, which was similar to that of Mount St. Helens in 1980 with flank collapse and lateral blast components. Prior to this eruption Bezymianny had been considered extinct. Subsequent episodic lava dome growth, accompanied by intermittent explosive activity and pyroclastic flows, has largely filled the 1956 crater. · Foto: Photo by Yuri Doubik (Institute of Volcanology, Petropavlovsk). · Wikimedia Commons
Tipo
Stratovulcano
Paese
Russia
Regione
Northwestern Pacific Volcanic Regions / Eastern Kamchatka Volcanic Arc
Altitudine
2882 m
Coordinate
55.972, 160.595
Ultima eruzione
2025
Contesto tettonico
Subduction zone / Continental crust (> 25 km)
Forma vulcanica
Composite
Roccia principale
Andesite / Basaltic Andesite
Sintesi geologica

The modern Bezymianny, much smaller than its massive neighbors Kamen and Kliuchevskoi on the Kamchatka Peninsula, was formed about 4,700 years ago over a late-Pleistocene lava-dome complex and an edifice built about 11,000-7,000 years ago. Three periods of intensified activity have occurred during the past 3,000 years. The latest period, which was preceded by a 1,000-year quiescence, began with the dramatic 1955-56 eruption. This eruption, similar to that of St. Helens in 1980, produced a large open crater that was formed by collapse of the summit and an associated lateral blast. Subsequent episodic but ongoing lava-dome growth, accompanied by intermittent explosive activity and pyroclastic flows, has largely filled the 1956 crater.

Sintesi da Wikipedia

Il Bezymjannyj è uno stratovulcano della Kamčatka, in Russia. Il suo nome significa in lingua russa vulcano senza nome; lo si riteneva estinto fino al 1955 quando ha ripreso una forte attività. Fa parte del gruppo di vulcani del Ključevskaja Sopka, una formazione di vulcani posta a oriente della Catena Centrale, nella parte settentrionale della penisola. La formazione è tipica dei vulcani presenti in una zona di subduzione, nello specifico dello scorrimento della placca pacifica sotto quella euroasiatica.

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Storia delle eruzioni

Riepilogo (VEI nel tempo)
Fai clic su una barra per vedere le singole eruzioni
7050 BCE~6748 BCE · 1 eruzioni · VEI max. ?5235 BCE~4933 BCE · 1 eruzioni · VEI max. ?2815 BCE~2513 BCE · 1 eruzioni · VEI max. ?1606 BCE~1303 BCE · 2 eruzioni · VEI max. ?698 BCE~396 BCE · 1 eruzioni · VEI max. 493 BCE~209 · 2 eruzioni · VEI max. ?209~512 · 1 eruzioni · VEI max. ?512~814 · 2 eruzioni · VEI max. 4814~1117 · 2 eruzioni · VEI max. 41722~2024 · 58 eruzioni · VEI max. 57050 BCE4933 BCE2513 BCE396 BCE1722

Cronologia dettagliata

  1. 2024VEI ?Osservata
    2024-12-24 – 2025-12-04
  2. 2022VEI 3Osservata
    2022-03-15 – 2024-08-14
    Summit crater
  3. 2016VEI 3Osservata
    2016-12-05 – 2021-02-01
    Summit crater
  4. 2014VEI ?Osservata
    2014-06-12 – 2014-08-29
    Summit crater
  5. 2012VEI ?Osservata
    2012-02-12 – 2013-06-20
    Summit crater
  6. 2011VEI ?Osservata
    2011-09-06 – 2011-10-26
  7. 2010VEI 3Osservata
    2010-05-21 – 2011-04-29
    Summit crater
  8. 2009VEI 3Osservata
    2009-12-17 – 2010-02-16
  9. 2008VEI 3Osservata
    2008-07-11 – 2008-08-23
  10. 2007VEI 3Osservata
    2007-05-10 – 2007-12-24
  11. 2006VEI 3Osservata
    2006-04-16 – 2006-12-29
  12. 2005VEI 2Osservata
    2005-11-29 – 2005-12-01
  13. 2004VEI 3Osservata
    2004-01-14 – 2005-02-16
  14. 2003VEI 3Osservata
    2003-07-26 – 2003-08-01
  15. 2002VEI 2Osservata
    2002-12-25 – 2002-12-28
  16. 2001VEI 3Osservata
    2001-07-23 – 2001-08-10
  17. 2001VEI 2Osservata
    2001-12-10 – 2002-01-06
  18. 2000VEI 2Osservata
    2000-03-14 – 2000-03-26
  19. 2000VEI 2Osservata
    2000-07-18 – 2000-11-04
  20. 1999VEI 2Osservata
    1999-02-25 – 1999-02-25
  21. 1998VEI 0Osservata
    1998-06-20 – 1998-06-22
  22. 1997VEI 3Osservata
    1997-05-08 – 1997-05-16
  23. 1997VEI 3Osservata
    1997-12-05 – 1997-12-06
  24. 1996VEI 0Osservata
    1996-07-23 – 1996-09-01
  25. 1995VEI 3Osservata
    1995-09-16 – 1995-10-08
  26. 1994VEI 2Osservata
    1994-07-07 – 1994-10-05
  27. 1993VEI 3Osservata
    1993-10-21 – 1994-02-04
  28. 1992VEI 2Osservata
    1992-03-12 – 1992-06-12
  29. 1990VEI 3Osservata
    1990-01-29 – 1991-11-29
  30. 1989VEI 2Osservata
    1989-08-01 – 1989-08-04
  31. 1986VEI 2Osservata
    1986-03-26 – 1986-06-29
  32. 1986VEI 3Osservata
    1986-12-05 – 1988-07-26
  33. 1985VEI 3Osservata
    1985-06-12 – 1985-12-14
  34. 1984VEI 3Osservata
    1984-02-05 – 1984-12-16
  35. 1981VEI 3Osservata
    1981-06-12 – 1983-05-22
  36. 1980VEI 3Osservata
    1980-04-18 – 1980-04-19
  37. 1980VEI 2Osservata
    1980-08-21 – 1980-08-27
  38. 1979VEI 3Osservata
    1979-02-11 – In corso
  39. 1979VEI 2Osservata
    1979-09-18 – In corso
  40. 1978VEI 2Osservata
    1978-09-08 – In corso
  41. 1977VEI 3Osservata
    1977-03-25 – In corso
  42. 1976VEI 2Osservata
    1976-03-25 – In corso
  43. 1971VEI 3Osservata
    1971-03-16 – 1974-12-16
  44. 1965VEI 3Osservata
    1965-03-09 – 1970-03-16
  45. 1964VEI 2Osservata
    1964-06-25 – 1964-09-20
  46. 1964VEI 1Osservata
    1964-12-25 – 1964-12-26
  47. 1963VEI 1Osservata
    1963-05-16 – 1963-09-16
  48. 1962VEI 2Osservata
    1962-10-21 – 1962-11-06
  49. 1961VEI 2Osservata
    1961-05-21 – 1961-06-06
  50. 1961VEI 3Osservata
    1961-10-18 – 1961-12-15
  51. 1961VEI 3Osservata
    1961-03-25 – 1961-03-26
  52. 1960VEI 2Osservata
    1960-04-13 – 1960-04-14
  53. 1959VEI 1Osservata
    1959-10-15 – 1959-11-04
  54. 1958VEI 1Osservata
    1958-01-16 – 1958-02-14
  55. 1958VEI 1Osservata
    1958-05-21 – In corso
  56. 1958VEI 2Osservata
    1958-12-28 – 1959-03-30
  57. 1957VEI 2Osservata
    1957-07-31 – 1957-07-31
  58. 1955VEI 5Osservata
    1955-10-22 – 1957-03-01
  59. 950VEI 4Stima geologica
    950 – In corso
    Summit region and western flank
  60. 850VEI ?Stima geologica
    850 – In corso
  61. 700 (±50 anni)VEI 4Stima geologica
    700 – In corso
    East summit region (Razrushenny dome)
  62. 600VEI ?Stima geologica
    600 – In corso
  63. 250VEI ?Stima geologica
    250 – In corso
  64. 150VEI ?Stima geologica
    150 – In corso
  65. 50VEI ?Stima geologica
    50 – In corso
  66. 450 a.C.VEI 4Stima geologica
    BCE 450 – In corso
  67. 1350 a.C.VEI ?Stima geologica
    BCE 1350 – In corso
  68. 1550 a.C. (±500 anni)VEI ?Stima geologica
    BCE 1550 – In corso
    Expeditsii and Exstrusivny Greben
  69. 2750 a.C. (±500 anni)VEI ?Stima geologica
    BCE 2750 – In corso
  70. 5050 a.C.VEI ?Stima geologica
    BCE 5050 – In corso
    Pra-Bezymianny
  71. 7050 a.C. (±2000 anni)VEI ?Stima geologica
    BCE 7050 – In corso
    Pra-Bezymianny

Link esterni

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