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Karthala

Volcán en escudo · Union of the Comoros · 2350 m

The greenish ~300-m-diameter Chahalé crater lake in the summit caldera complex of Karthala volcano is seen here in August 2003 before an eruption in April 2005. The photo, taken by an automatic camera located at the summit, looks from the NNE towards the SSW. Karthala is the southernmost and largest of the two shield volcanoes forming Grand Comore Island (also known as Ngazidja Island) and contains a 3 x 4 km summit caldera generated by repeated collapse. It has elongated rift zones extending to the NNW and SE.
The greenish ~300-m-diameter Chahalé crater lake in the summit caldera complex of Karthala volcano is seen here in August 2003 before an eruption in April 2005. The photo, taken by an automatic camera located at the summit, looks from the NNE towards the SSW. Karthala is the southernmost and largest of the two shield volcanoes forming Grand Comore Island (also known as Ngazidja Island) and contains a 3 x 4 km summit caldera generated by repeated collapse. It has elongated rift zones extending to the NNW and SE. · Foto: Photo by Nicolas Villenueve, 2003 (Université de la Réunion). · Wikimedia Commons
Tipo
Volcán en escudo
País
Union of the Comoros
Región
Somalian-Antarctic Volcanic Regions / Madagascar-Comoros Volcanic Province
Altitud
2350 m
Coordenadas
-11.766, 43.364
Última erupción
2007
Contexto tectónico
Intraplate / Oceanic crust (< 15 km)
Forma volcánica
Shield
Roca principal
Basalt / Picro-Basalt
Resumen geológico

The southernmost and largest of the two shield volcanoes forming Grand Comore Island (also known as Ngazidja Island), Karthala has two overlapping 3-4 km summit calderas generated by repeated collapse. Elongated rift zones extend NNW and SE from the summit of the basaltic shield, which has an asymmetrical profile that is steeper to the S. The lower SE rift zone forms the Massif du Badjini, a peninsula at the SE tip of the island. More than twenty eruptions have been recorded since the 19th century from the summit caldera and vents on the N and S flanks, producing many lava flows that reached the sea on both sides of the island. An 1860 CE lava flow from the summit caldera traveled ~13 km to the NW, reaching the W coast to the N of the capital city of Moroni.

Resumen de Wikipedia

El Karthala es un volcán activo en la isla de Gran Comora, es el punto más alto de las Comoras. El volcán Karthala es notoriamente activo, después de haber hecho erupción más de 20 veces desde el siglo XIX. Frecuentes erupciones han formado al volcán con una caldera de 3 por 4 kilómetros, pero la isla ha escapado de una destrucción masiva. El 17 de abril de 2005, ocurrió una erupción, forzando a cientos de pobladores a huir.

Wikipedia · CC BY-SA · Leer artículo completo →

Historial de erupciones

Resumen (VEI en el tiempo)
Haga clic en una barra para ver erupciones individuales
1050~1146 · 1 erupciones · VEI máx. ?1720~1816 · 2 erupciones · VEI máx. ?1816~1911 · 19 erupciones · VEI máx. 21911~2007 · 13 erupciones · VEI máx. 310501241152917201911

Línea de tiempo detallada

  1. 2007VEI 2Observado
    2007-01-12 – 2007-01-15
    Chahalé crater
  2. 2006VEI 0Observado
    2006-05-28 – 2006-06-03
    Chahalé crater
  3. 2005VEI 2Observado
    2005-04-16 – 2005-04-18
    Chahalé crater
  4. 2005VEI 3Observado
    2005-11-24 – 2005-12-08
    Chahalé crater
  5. 1991VEI 2Observado
    1991-07-11 – 1991-07-11
    Choungou-Chahalé (Choungou-Chamadji)
  6. 1977VEI 1Observado
    1977-04-05 – 1977-04-10
    SW flank
  7. 1972VEI 1Observado
    1972-09-08 – 1972-10-05
    North end of summit crater
  8. 1965VEI 2Observado
    1965-07-12 – 1965-07-12
    Between Changomeni & Chahalé Craters
  9. 1956VEI 2Observado
    1956-06-01 – En curso
    Chahalé crater
  10. 1952VEI 2Observado
    1952-02-10 – 1952-02-12
    Chahalé crater
  11. 1948VEI 2Observado
    1948-04-22 – 1948-06-16
    Cheminee Nord (Changomeni)
  12. 1928 (±2 años)VEI 1Observado
    1928 – En curso
  13. 1918VEI 3Observado
    1918-08-11 – 1918-08-26
    NE flank, Changomeni, NE Chahalé
  14. 1910VEI 1Observado
    1910-03 – 1910-03
    North flank (1300 m)
  15. 1904VEI 2Observado
    1904-02-25 – 1904-04
    North flank (1300 m)
  16. 1883VEI 2Observado
    1883-03 – 1884
    SE flank
  17. 1880VEI 2Observado
    1880 – En curso
    SE flank (Badjini Massif)
  18. 1876VEI 0Observado
    1876 – En curso
    SE flank (Badjini Massif)
  19. 1872VEI 2Observado
    1872 – En curso
    NW flank (Diboini Plateau)
  20. 1865VEI 2Observado
    1865 – En curso
  21. 1862VEI 2Estimación geológica
    1862 – En curso
  22. 1860VEI 0Observado
    1860-12-29 – En curso
    SE flank (Badjini Massif, 1200 m)
  23. 1859VEI 2Observado
    1859 – En curso
    NW flank (Diboini Plateau fissures)
  24. 1858VEI 2Observado
    1858 – En curso
    Upper NE flank (2200 m)
  25. 1857VEI 2Observado
    1857 – En curso
    SE flank (Badjini Massif) & summit
  26. 1855VEI 2Observado
    1855-07-01 – En curso
    SE flank
  27. 1850VEI 0Observado
    1850 – En curso
    West-SW flank (400 m)
  28. 1848VEI 0Observado
    1848 – En curso
    SE flank
  29. 1833VEI ?Observado
    1833 – En curso
    Summit caldera ?
  30. 1830VEI 2Observado
    1830 – En curso
  31. 1828VEI 2Observado
    1828-05 – En curso
  32. 1821VEI ?Observado
    1821-12-31 – En curso
  33. 1814VEI ?Observado
    1814-12-31 – En curso
  34. 1808VEI ?Observado
    1808 – En curso
  35. 1050 (±150 años)VEI ?Observado
    1050 – En curso

Enlaces externos

⚠ Solo como referencia. No apto para respuesta ante emergencias.