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Mount Iwaki

Iwakisan

Stratovulcano · Japan · 1624 m

Iwakisan rises above farmlands below its SE flank. The peak to the left is Chokaisan and the 2-km-wide summit crater is filled by a lava dome that forms the summit. Eruptions have occurred since 1597 CE and have consisted primarily of small-to-moderate phreatic explosions.
Iwakisan rises above farmlands below its SE flank. The peak to the left is Chokaisan and the 2-km-wide summit crater is filled by a lava dome that forms the summit. Eruptions have occurred since 1597 CE and have consisted primarily of small-to-moderate phreatic explosions. · Foto: Copyrighted photo by Yoshihiro Ishizuka (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
Stratovulcano
Paese
Japan
Regione
Pacifico nord-occidentale / Northeast Japan Volcanic Arc
Altitudine
1624 m
Coordinate
40.656, 140.303
Ultima eruzione
1863
Contesto tettonico
Subduction zone / Continental crust (> 25 km)
Forma vulcanica
Composite
Roccia principale
Andesite / Basaltic Andesite
Sintesi geologica

Iwakisan volcano, symmetrical on all but its western flanks, has a 2-km-wide summit crater filled by a lava dome flanked by six explosion craters. Three more lava domes are found on the western and southern flanks of the andesitic volcano. Eruptions have been reported since 1600 CE, consisting primarily of small-to-moderate phreatic explosions.

Storia delle eruzioni

Riepilogo (VEI nel tempo)
Fai clic su una barra per vedere le singole eruzioni
8050 BCE~7720 BCE · 1 eruzioni · VEI max. ?4085 BCE~3754 BCE · 1 eruzioni · VEI max. ?1111 BCE~780 BCE · 1 eruzioni · VEI max. ?780 BCE~450 BCE · 1 eruzioni · VEI max. ?1533~1863 · 25 eruzioni · VEI max. 38050 BCE5737 BCE3093 BCE780 BCE1533

Cronologia dettagliata

  1. 1863VEI 1Osservata
    1863-03-23 – In corso
  2. 1856VEI 2Stima geologica
    1856-05-20 – In corso
  3. 1848VEI 2Stima geologica
    1848-01-18 – In corso
  4. 1845VEI 2Osservata
    1845-04-04 – In corso
  5. 1844VEI 2Osservata
    1844-04-07 – In corso
    Summit and south flank?
  6. 1833VEI 2Stima geologica
    1833-04-11 – In corso
  7. 1807VEI 2Stima geologica
    1807-03-31 – In corso
  8. 1800VEI 2Stima geologica
    1800-05-11 – In corso
  9. 1794VEI 2Stima geologica
    1794-04-03 – In corso
  10. 1793VEI 2Stima geologica
    1793-04-02 – In corso
  11. 1790VEI 2Osservata
    1790-10-09 – In corso
  12. 1783VEI 2Stima geologica
    1783-12-03 – In corso
  13. 1782VEI 2Stima geologica
    1782-04-12 – In corso
    South flank
  14. 1782VEI 2Osservata
    1782-12-01 – 1783-03-12
  15. 1769VEI 2Stima geologica
    1769 – In corso
  16. 1709VEI 2Stima geologica
    1709-04-23 – In corso
  17. 1694VEI 2Stima geologica
    1694-06-19 – In corso
  18. 1672VEI 2Stima geologica
    1672-07-12 – 1672-07-28
  19. 1618VEI 2Osservata
    1618-01-31 – In corso
  20. 1605VEI 2Stima geologica
    1605-04-10 – In corso
  21. 1604VEI 3Osservata
    1604-02-07 – In corso
    Torinoumi
  22. 1600VEI 2Osservata
    1600-02-22 – In corso
    Torinoumi
  23. 1600VEI 2Osservata
    1600-07-23 – 1600-07-25
    Torinoumi
  24. 1597VEI 2Stima geologica
    1597-01 – In corso
  25. 1597VEI 2Stima geologica
    1597-06-13 – In corso
  26. 550 a.C. (±500 anni)VEI ?Stima geologica
    BCE 550 – In corso
    Torinoumi lava dome
  27. 1050 a.C.VEI ?Stima geologica
    BCE 1050 – In corso
    Summit and central lava dome
  28. 4050 a.C.VEI ?Stima geologica
    BCE 4050 – In corso
    West summit lava dome
  29. 8050 a.C.VEI ?Stima geologica
    BCE 8050 – In corso
    Torinoumi lava dome

Link esterni

⚠ Solo a scopo informativo. Non adatto a situazioni di emergenza.