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Gunung Bezymianny

Bezymianny

Stratovolkan · 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
Tipe
Stratovolkan
Negara
Russia
Wilayah
Northwestern Pacific Volcanic Regions / Eastern Kamchatka Volcanic Arc
Ketinggian
2882 m
Koordinat
55.972, 160.595
Letusan terakhir
2025
Kondisi tektonik
Subduction zone / Continental crust (> 25 km)
Bentuk lahan
Composite
Batuan utama
Andesite / Basaltic Andesite
Ringkasan geologi

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.

Ringkasan Wikipedia

Bezymianny adalah sebuah gunung berapi kerucut aktif di Semenanjung Kamchatka, Rusia. Gunung berapi ini telah dianggap tidak aktif hingga tahun 1955. Aktivitasnya dimulai pada tahun 1955, yang berpuncak pada letusan dramatis pada tanggal 30 Maret 1956. Letusannya mirip dengan letusan Gunung St. Helens pada tahun 1980, menghasilkan kawah besar berbentuk tapal kuda yang terbentuk akibat runtuhnya puncak dan letusan lateral yang terkait. Pertumbuhan kubah lava yang episodik tetapi berkelanjutan, disertai dengan aktivitas ledakan yang terputus-putus dan awan panas, sebagian besar telah memenuhi kawah tahun 1956. Letusan aliran lava terbaru terjadi pada bulan Februari 2013. Letusan eksplosif pada tanggal 20 Desember 2017 mengeluarkan gumpalan abu setinggi 15 kilometer di atas permukaan laut, yang melayang sejauh 320 kilometer menuju timur laut. Gunung berapi ini juga meletus pada tanggal 28 Mei 2022, yang kembali memuntahkan gumpalan abu setinggi lebih dari 15 kilometer. Pada tanggal 7 April 2023, Rusia melaporkan Bezymianny kembali meletus secara eksplosif dan Badan Federal untuk Transportasi Udara, Rosaviatsiya, mengeluarkan Notice to Airmen (NOTAM) dan menaikkan Kode Warna Penerbangan Merah. Letusan tersebut membentuk kolom abu yang menjulang setinggi 12 kilometer dan perlahan melayang ke tenggara. Gumpalan abu membentang sejauh 2.000 kilometer.

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Riwayat letusan

Ringkasan (VEI dari waktu ke waktu)
Klik pada bar untuk melihat letusan individu
7050 BCE~6748 BCE · 1 letusan · VEI maks. ?5235 BCE~4933 BCE · 1 letusan · VEI maks. ?2815 BCE~2513 BCE · 1 letusan · VEI maks. ?1606 BCE~1303 BCE · 2 letusan · VEI maks. ?698 BCE~396 BCE · 1 letusan · VEI maks. 493 BCE~209 · 2 letusan · VEI maks. ?209~512 · 1 letusan · VEI maks. ?512~814 · 2 letusan · VEI maks. 4814~1117 · 2 letusan · VEI maks. 41722~2024 · 58 letusan · VEI maks. 57050 BCE4933 BCE2513 BCE396 BCE1722

Garis waktu rinci

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

Tautan eksternal

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