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Mount Abang

Batur

Caldera · Indonesia · 1711 m

The Batur cone on the island of Bali was constructed as a result of eruptions along a NE-SW-trending line of vents. It is located within a 7.5-km-wide inner caldera with its SE margin below a lake that fills part of the SE floor of an outer 10 x 13 km caldera. Historical lava flows have formed much of the far lake shore in this view.
The Batur cone on the island of Bali was constructed as a result of eruptions along a NE-SW-trending line of vents. It is located within a 7.5-km-wide inner caldera with its SE margin below a lake that fills part of the SE floor of an outer 10 x 13 km caldera. Historical lava flows have formed much of the far lake shore in this view. · Foto: Photo by Sumarna Hamidi, 1973 (Volcanological Survey of Indonesia). · Wikimedia Commons
Tipo
Caldera
Paese
Indonesia
Regione
Sunda-Banda Volcanic Regions / Sunda Volcanic Arc
Altitudine
1711 m
Coordinate
-8.240, 115.377
Ultima eruzione
2000
Contesto tettonico
Subduction zone / Continental crust (> 25 km)
Forma vulcanica
Caldera
Roccia principale
Andesite / Basaltic Andesite
Sintesi geologica

The historically active Batur is located at the center of two concentric calderas NW of Agung volcano. The outer 10 x 13.5 km caldera was formed during eruption of the Bali (or Ubud) Ignimbrite about 29,300 years ago and now contains a caldera lake on its SE side, opposite the Gunung Abang cone, the topographic high of the complex. The inner 6.4 x 9.4 km caldera was formed about 20,150 years ago during eruption of the Gunungkawi Ignimbrite. The SE wall of the inner caldera lies beneath Lake Batur; Batur cone has been constructed within the inner caldera to a height above the outer caldera rim. The Batur stratovolcano has produced vents over much of the inner caldera, but a NE-SW fissure system has localized the Batur I, II, and III craters along the summit ridge. Recorded eruptions have been characterized by mild-to-moderate explosive activity sometimes accompanied by lava emission. Basaltic lava flows from both summit and flank vents have reached the caldera floor and the shores of Lake Batur in historical time.

Sintesi da Wikipedia

Riassunto in inglese

Mount Batur is an active volcano located at the center of two concentric calderas northwest of Mount Agung on the island of Bali, Indonesia. The southeast side of the larger 10×13 km caldera contains a caldera lake. Both the larger caldera, and a smaller 7.5 km caldera were formed by a collapse of the magma chamber, the first larger collapse taking place about 29,300 years ago, and the second inner caldera collapsing about 20,150 years ago. Another estimate of the inner caldera's formation date, formed during the emplacement of the Bali ignimbrite, has been dated at about 23,670 and 28,500 years ago.

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Storia delle eruzioni

Riepilogo (VEI nel tempo)
Fai clic su una barra per vedere le singole eruzioni
1804~1824 · 2 eruzioni · VEI max. 21843~1863 · 3 eruzioni · VEI max. 21882~1902 · 2 eruzioni · VEI max. 21902~1921 · 2 eruzioni · VEI max. 21921~1941 · 6 eruzioni · VEI max. 21960~1980 · 10 eruzioni · VEI max. 21980~1999 · 3 eruzioni · VEI max. 118041843190219411980

Cronologia dettagliata

  1. 1999VEI 1Osservata
    1999-03-15 – 2000-06-16
  2. 1998VEI 1Osservata
    1998-07-04 – In corso
  3. 1994VEI 1Osservata
    1994-08-07 – 1994-08-14
    Batur III
  4. 1976VEI 1Stima geologica
    1976-03-26 – 1976-03-26
  5. 1974VEI 2Osservata
    1974-03-12 – 1974-04-16
    Batur III
  6. 1973VEI 1Osservata
    1973-03-30 – In corso
  7. 1972VEI 2Osservata
    1972-01-19 – 1972-03-16
    Batur III
  8. 1971VEI 1Osservata
    1971-03-11 – 1971-08-25
  9. 1970VEI 1Osservata
    1970-01-05 – 1970-01-15
    SW flank (1963 vent)
  10. 1968VEI 2Osservata
    1968-01-23 – 1968-02-15
    SW flank (Batur III)
  11. 1966VEI 1Osservata
    1966-04-28 – In corso
    SW flank (west of 1965 vent)
  12. 1965VEI 1Osservata
    1965-08-18 – 1965-12-16
    SW flank (near Batur III)
  13. 1963VEI 2Osservata
    1963-09-05 – 1964-05-10
    SW, W flanks (near Batur III, Butus)
  14. 1926VEI 2Osservata
    1926-08-02 – 1926-09-21
    SW flank below Batur III
  15. 1925VEI 2Osservata
    1925-01-05 – 1925-01-05
    Batur II
  16. 1924VEI 2Osservata
    1924-03 – 1924-03
    Batur II
  17. 1923VEI 2Osservata
    1923 – In corso
    Batur II
  18. 1922VEI 2Osservata
    1922-08-30 – In corso
  19. 1921VEI 2Osservata
    1921-01-29 – 1921-04-17
    SW flank (Batur II)
  20. 1905VEI 2Osservata
    1905 – In corso
    Batur I, Batur II, Batur III
  21. 1904VEI 2Osservata
    1904 – In corso
    West caldera floor (Gunung Anti)
  22. 1897VEI 2Osservata
    1897 – In corso
    Batur I
  23. 1888VEI 2Osservata
    1888-05-30 – 1888-05-31
    SE flank of Batur I
  24. 1854VEI 1Osservata
    1854-04-28 – In corso
    Batur I
  25. 1849VEI 2Osservata
    1849 – In corso
  26. 1847VEI ?Stima geologica
    1847 – In corso
  27. 1821VEI 2Osservata
    1821-03-16 – In corso
    Batur I
  28. 1804VEI 2Osservata
    1804 – In corso
    Batur I

Link esterni

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