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Sakurajima

Aira

Caldera · Japan · 1117 m

A plume rises above the Minamidake crater on Sakurajima. Activity at Kitadake, the peak to the right in this view from the SE, ended about 4,850 years ago, after which eruptions took place at Minamidake. Sakurajima is one of Japan's most active volcanoes and is a post-caldera cone in the Aira caldera at the northern half of Kagoshima Bay. Frequent historical eruptions have deposited ash across the bay on Kagoshima, one of Kyushu's largest cities.
A plume rises above the Minamidake crater on Sakurajima. Activity at Kitadake, the peak to the right in this view from the SE, ended about 4,850 years ago, after which eruptions took place at Minamidake. Sakurajima is one of Japan's most active volcanoes and is a post-caldera cone in the Aira caldera at the northern half of Kagoshima Bay. Frequent historical eruptions have deposited ash across the bay on Kagoshima, one of Kyushu's largest cities. · Foto: Copyrighted photo by Shun Nakano (Japanese Quaternary Volcanoes database, RIODB, http://riodb02.ibase.aist.go.jp/strata/VOL_JP/EN/index.htm and Geol Surv Japan, AIST, http://www.gsj.jp/). · Wikimedia Commons
Tipo
Caldera
Paese
Japan
Regione
Western Pacific Volcanic Regions / Ryukyu Volcanic Arc
Altitudine
1117 m
Coordinate
31.577, 130.659
Ultima eruzione
2026
Contesto tettonico
Subduction zone / Continental crust (> 25 km)
Forma vulcanica
Caldera
Roccia principale
Andesite / Basaltic Andesite
Sintesi geologica

The Aira caldera in the northern half of Kagoshima Bay contains the post-caldera Sakurajima volcano, one of Japan's most active. Eruption of the voluminous Ito pyroclastic flow accompanied formation of the 17 x 23 km caldera about 22,000 years ago. The smaller Wakamiko caldera was formed during the early Holocene in the NE corner of the caldera, along with several post-caldera cones. The construction of Sakurajima began about 13,000 years ago on the southern rim and built an island that was joined to the Osumi Peninsula during the major explosive and effusive eruption of 1914. Activity at the Kitadake summit cone ended about 4,850 years ago, after which eruptions took place at Minamidake. Frequent eruptions since the 8th century have deposited ash on the city of Kagoshima, located across Kagoshima Bay only 8 km from the summit. The largest recorded eruption took place during 1471-76.

Sintesi da Wikipedia

Il Sakurajima è un vulcano attivo, situato sull’omonima penisola della prefettura di Kagoshima, nel Giappone sud-occidentale.

Wikipedia · CC BY-SA · Leggi l'articolo completo →

Storia delle eruzioni

Riepilogo (VEI nel tempo)
Fai clic su una barra per vedere le singole eruzioni
8050 BCE~7714 BCE · 2 eruzioni · VEI max. 66372 BCE~6037 BCE · 2 eruzioni · VEI max. 56037 BCE~5701 BCE · 1 eruzioni · VEI max. ?5701 BCE~5365 BCE · 1 eruzioni · VEI max. ?5030 BCE~4694 BCE · 1 eruzioni · VEI max. ?3352 BCE~3016 BCE · 1 eruzioni · VEI max. 43016 BCE~2681 BCE · 1 eruzioni · VEI max. 42345 BCE~2010 BCE · 1 eruzioni · VEI max. ?1339 BCE~1003 BCE · 1 eruzioni · VEI max. ?668 BCE~332 BCE · 1 eruzioni · VEI max. ?675~1010 · 6 eruzioni · VEI max. 41346~1681 · 6 eruzioni · VEI max. 51681~2017 · 29 eruzioni · VEI max. 48050 BCE5701 BCE3016 BCE668 BCE1681

Cronologia dettagliata

  1. 2017VEI 2Osservata
    2017-03-25 – 2026-03-23
    Minamidake summit crater
  2. 1955VEI 3Osservata
    1955-10-13 – 2016-08-22
    Minami-dake and east flank (Showa crater)
  3. 1954VEI 1Stima geologica
    1954-11-16 – 1954-12-16
    Minami-dake
  4. 1950VEI 1Osservata
    1950-06-29 – 1950-09-09
    Minami-dake
  5. 1948VEI 1Osservata
    1948-07-27 – 1948-07-27
    East flank of Minami-dake (750 m)
  6. 1946VEI 2Osservata
    1946-01 – 1946-11
    East flank of Minami-dake (750 m)
  7. 1942VEI 1Osservata
    1942-07-16 – 1942-07-16
    East flank of Minami-dake (750 m)
  8. 1941VEI 2Osservata
    1941-04-28 – 1941-08-26
    East flank of Minami-dake (750 m)
  9. 1940VEI 2Osservata
    1940-04-24 – 1940-07-09
    Minami-dake and east flank (750 m)
  10. 1939VEI 2Osservata
    1939-10-26 – 1939-11-12
    East flank of Minami-dake (750 m)
  11. 1938VEI 2Osservata
    1938-02-25 – 1938-03-31
    Minami-dake
  12. 1935VEI 1Osservata
    1935-09-20 – 1935-09-24
    Minami-dake
  13. 1914VEI 4Osservata
    1914-01-12 – 1915-05
    West, east and SE flanks
  14. 1899VEI 1Stima geologica
    1899-09-24 – 1899-09-25
    Minami-dake
  15. 1860VEI 1Osservata
    1860 – In corso
    Minami-dake
  16. 1799VEI 2Osservata
    1799-03-27 – In corso
    Minami-dake
  17. 1797VEI 2Osservata
    1797 – In corso
    Minami-dake
  18. 1794VEI 2Osservata
    1794 – In corso
    Minami-dake
  19. 1792VEI 2Stima geologica
    1792 – In corso
    Minami-dake
  20. 1791VEI 2Osservata
    1791-09-11 – In corso
    Minami-dake
  21. 1790VEI 2Osservata
    1790-07-29 – In corso
    Minami-dake
  22. 1785VEI 2Osservata
    1785-11-20 – In corso
  23. 1783VEI 3Osservata
    1783-09-03 – In corso
  24. 1782VEI 2Osservata
    1782-01-18 – In corso
    NE flank (offshore)
  25. 1779VEI 4Osservata
    1779-11-08 – 1781-05
    NE flank, off NE coast, south flank
  26. 1756VEI 2Osservata
    1756-09-09 – In corso
    Minami-dake
  27. 1749VEI 2Osservata
    1749-09 – In corso
    Minami-dake summit, west flank?
  28. 1742VEI 2Osservata
    1742-04-06 – In corso
    Minami-dake
  29. 1706VEI 2Osservata
    1706-01 – In corso
    Minami-dake
  30. 1678VEI 2Osservata
    1678-03-01 – In corso
    Minami-dake
  31. 1670VEI 2Stima geologica
    1670-06-01 – In corso
  32. 1642VEI 2Osservata
    1642-04-06 – In corso
    Minami-dake
  33. 1478VEI 2Osservata
    1478-09-23 – In corso
    Minami-dake
  34. 1471VEI 5Osservata
    1471-11-03 – 1476-10-08
    NE and SW flanks, summit crater
  35. 1468VEI 2Osservata
    1468 – In corso
    Minami-dake
  36. 778VEI 0Osservata
    778 – In corso
  37. 766VEI 3Osservata
    766-07-20 – In corso
  38. 764VEI 4Osservata
    764-01 – In corso
    East flank (Nabe-yama)
  39. 716VEI 3Osservata
    716 – 718
  40. 712VEI 3Stima geologica
    712 – In corso
  41. 708VEI 3Osservata
    708 – In corso
  42. 650 a.C.VEI ?Stima geologica
    BCE 650 – In corso
    Minami-dake
  43. 1050 a.C.VEI ?Stima geologica
    BCE 1050 – In corso
  44. 2050 a.C.VEI ?Stima geologica
    BCE 2050 – In corso
  45. 2900 a.C.VEI 4Stima geologica
    BCE 2900 – In corso
    Kita-dake
  46. 3050 a.C.VEI 4Stima geologica
    BCE 3050 – In corso
    Kita-dake
  47. 4800 a.C.VEI ?Stima geologica
    BCE 4800 – In corso
    Kita-dake
  48. 5400 a.C.VEI ?Stima geologica
    BCE 5400 – In corso
    Kita-dake
  49. 5950 a.C.VEI ?Stima geologica
    BCE 5950 – In corso
    Kita-dake
  50. 6050 a.C.VEI 5Stima geologica
    BCE 6050 – In corso
    Kita-dake
  51. 6350 a.C.VEI ?Stima geologica
    BCE 6350 – In corso
    Kita-dake
  52. 7750 a.C.VEI ?Stima geologica
    BCE 7750 – In corso
    Kita-dake
  53. 8050 a.C. (±1000 anni)VEI 6Stima geologica
    BCE 8050 – In corso
    Wakamiko Caldera

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