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Barren

Barren Island

Stratovulcano · India · 354 m

An ash plume in 1991 rises above Barren Island along the volcanic arc connecting north of Sumatra. The 3-km-wide island contains a 1.6-km-wide crater that is partially filled by a scoria cone that has been the source of eruptions since the first was recorded in 1787. Lava flows reached the coast during several recent eruptions.
An ash plume in 1991 rises above Barren Island along the volcanic arc connecting north of Sumatra. The 3-km-wide island contains a 1.6-km-wide crater that is partially filled by a scoria cone that has been the source of eruptions since the first was recorded in 1787. Lava flows reached the coast during several recent eruptions. · Foto: Photo courtesy of D. Haldar, 1991 (Geological Survey of India). · Wikimedia Commons
Tipo
Stratovulcano
Paese
India
Regione
Sunda-Banda Volcanic Regions / Andaman Volcanic Province
Altitudine
354 m
Coordinate
12.278, 93.858
Ultima eruzione
2026
Contesto tettonico
Subduction zone / Continental crust (> 25 km)
Forma vulcanica
Composite
Roccia principale
Basalt / Picro-Basalt
Sintesi geologica

Barren Island, a possession of India in the Andaman Sea about 135 km NE of Port Blair in the Andaman Islands, is the only historically active volcano along the N-S volcanic arc extending between Sumatra and Burma (Myanmar). It is the emergent summit of a volcano that rises from a depth of about 2250 m. The small, uninhabited 3-km-wide island contains a roughly 2-km-wide caldera with walls 250-350 m high. The caldera, which is open to the sea on the west, was created during a major explosive eruption in the late Pleistocene that produced pyroclastic-flow and -surge deposits. Historical eruptions have changed the morphology of the pyroclastic cone in the center of the caldera, and lava flows that fill much of the caldera floor have reached the sea along the western coast.

Sintesi da Wikipedia

L'isola Barren è un'isola dell'arcipelago delle Andamane. Fa parte del territorio indiano delle Andamane e Nicobare.

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
8060 BCE~7724 BCE · 1 eruzioni · VEI max. ?1689~2025 · 22 eruzioni · VEI max. 28060 BCE5707 BCE3017 BCE664 BCE1689

Cronologia dettagliata

  1. 2025VEI ?Osservata
    2025-07-30 – 2026-01-11
  2. 2024VEI 2Osservata
    2024-03-15 – 2024-05-29
  3. 2022VEI ?Osservata
    2022-05-15 – 2022-05-15
  4. 2022VEI 2Osservata
    2022-12-30 – 2023-08-18
  5. 2019VEI 1Osservata
    2019-10-23 – 2022-01-30
    Summit crater
  6. 2018VEI 1Osservata
    2018-09-25 – 2019-04-30
    Summit crater and NW, SW, and SE flanks
  7. 2017VEI 1Osservata
    2017-01-15 – 2017-03-24
    Main cone, summit crater
  8. 2015VEI 2Osservata
    2015-03-17 – 2016-05-17
    Main cone
  9. 2013VEI 2Osservata
    2013-02-16 – 2013-02-16
    Summit caldera
  10. 2013VEI 2Osservata
    2013-10-12 – 2014-06-01
    Main cone
  11. 2010VEI 1Osservata
    2010-09-17 – 2011-06-22
    Summit caldera and N flank
  12. 2008VEI 2Osservata
    2008-05-13 – 2010-04-19
  13. 2005VEI 2Osservata
    2005-05-26 – 2007-12-23
    Central cone summit, N, S, and SW flanks
  14. 2000VEI 1Stima geologica
    2000-01-16 – In corso
  15. 1994VEI 2Osservata
    1994-12-20 – 1995-06-05
    Central cone summit, SW & S flanks
  16. 1991VEI 2Osservata
    1991-04-01 – 1991-10-31
    Central cone summit and NE flank
  17. 1852VEI 2Stima geologica
    1852 – In corso
  18. 1832VEI 2Osservata
    1832-03 – In corso
  19. 1803VEI 2Osservata
    1803-11 – 1804-01-31
  20. 1795VEI 2Osservata
    1795-12-20 – 1795-12-21
  21. 1789VEI 2Osservata
    1789-03-24 – In corso
  22. 1787VEI 2Osservata
    1787-05-12 – In corso
  23. 8060 a.C. (±100 anni)VEI ?Stima geologica
    BCE 8060 – In corso

Link esterni

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