Vai al contenuto principale
← Torna alla mappa
⇄ Confronta

Nevados de Chillán

Chillan, Nevados de

Stratovulcano · Chile · 3180 m

Volcán Nuevo, the newest cone of the three-peaked Nevados de Chillán volcano, was formed beginning in 1861. It grew between Cerro Blanco and Volcán Viejo, which anchor the NW and SE ends of the complex, respectively. Volcán Nuevo has been the most active volcano of the complex since its birth. In 1973, the year of this photo, a long-term eruption began on the SE flank of Volcán Nuevo, producing a cone that by 1987 had grown above Volcán Nuevo. Nevados de Chillán is one of the most active volcanoes of the Central Andes of Chile.
Volcán Nuevo, the newest cone of the three-peaked Nevados de Chillán volcano, was formed beginning in 1861. It grew between Cerro Blanco and Volcán Viejo, which anchor the NW and SE ends of the complex, respectively. Volcán Nuevo has been the most active volcano of the complex since its birth. In 1973, the year of this photo, a long-term eruption began on the SE flank of Volcán Nuevo, producing a cone that by 1987 had grown above Volcán Nuevo. Nevados de Chillán is one of the most active volcanoes of the Central Andes of Chile. · Foto: Photo by Hugo Moreno, 1973 (University of Chile). · Wikimedia Commons
Tipo
Stratovulcano
Paese
Chile
Regione
South America Volcanic Regions / Southern Andean Volcanic Arc
Altitudine
3180 m
Coordinate
-36.868, -71.378
Ultima eruzione
2022
Contesto tettonico
Subduction zone / Continental crust (> 25 km)
Forma vulcanica
Composite
Roccia principale
Andesite / Basaltic Andesite
Sintesi geologica

The compound volcano of Nevados de Chillán is one of the most active of the Central Andes. Three late-Pleistocene to Holocene stratovolcanoes were constructed along a NNW-SSE line within three nested Pleistocene calderas, which produced ignimbrite sheets extending more than 100 km into the Central Depression of Chile. The dominantly andesitic Cerro Blanco (Volcán Nevado) stratovolcano is located at the NW end of the massif. Volcán Viejo (Volcán Chillán), which was the main active vent during the 17th-19th centuries, occupies the SE end. The Volcán Nuevo lava-dome complex formed during 1906-1945 on the NW flank of Viejo. The Volcán Arrau dome complex was then constructed on the SE side of Volcán Nuevo between 1973 and 1986, and eventually exceeded its height. Smaller domes or cones are present in the 5-km valley between the two major edifices.

Sintesi da Wikipedia

Nevados de Chillán è un gruppo di stratovulcani delle Ande, in Cile, ed è uno dei più attivi vulcani della regione.

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
6890 BCE~6593 BCE · 1 eruzioni · VEI max. ?3921 BCE~3624 BCE · 1 eruzioni · VEI max. ?1546 BCE~1250 BCE · 1 eruzioni · VEI max. ?359 BCE~62 BCE · 1 eruzioni · VEI max. ?1422~1719 · 1 eruzioni · VEI max. 31719~2016 · 27 eruzioni · VEI max. 36890 BCE4812 BCE2437 BCE359 BCE1719

Cronologia dettagliata

  1. 2016VEI 2Osservata
    2016-01-08 – 2022-10-17
    Nicanor crater
  2. 2009VEI ?Stima geologica
    2009-01-21 – 2009-01-22
  3. 2003VEI 1Osservata
    2003-08-29 – 2003-09-15
    Saddle between Nuevo & Arrau volcanoes
  4. 1973VEI 2Osservata
    1973-07-16 – 1986-07-02
    Volcán Arrau (SE flank of Volcán Nuevo)
  5. 1972VEI ?Stima geologica
    1972-07-02 – In corso
    Volcán Nuevo
  6. 1965VEI ?Stima geologica
    1965-07-02 – In corso
    Volcán Nuevo
  7. 1946VEI 2Osservata
    1946 – 1947
    Volcán Nuevo
  8. 1945VEI ?Stima geologica
    1945 – In corso
    Volcán Nuevo
  9. 1935VEI 2Osservata
    1935-07-02 – In corso
    West flank of Volcán Viejo
  10. 1934VEI 2Osservata
    1934-01-17 – In corso
    Volcán Nuevo
  11. 1928VEI 2Osservata
    1928-11-30 – 1929
    Volcán Nuevo
  12. 1927VEI 2Osservata
    1927-04-10 – In corso
    Volcán Nuevo
  13. 1923VEI 2Stima geologica
    1923 – In corso
    Volcán Nuevo
  14. 1914VEI 2Osservata
    1914 – In corso
    Volcán Nuevo
  15. 1907VEI 1Osservata
    1907 – In corso
    Volcán Nuevo
  16. 1906VEI 2Osservata
    1906-08-06 – 1906-12
    Volcán Nuevo
  17. 1898VEI 2Osservata
    1898 – In corso
    Volcán Viejo
  18. 1893VEI 2Osservata
    1893-03-04 – In corso
    Volcán Viejo
  19. 1891VEI 2Osservata
    1891-02 – In corso
    Volcán Viejo
  20. 1883VEI 2Stima geologica
    1883-01-21 – In corso
    Volcán Viejo (Volcán las Aguilas?)
  21. 1877VEI 2Osservata
    1877-02-12 – In corso
    Volcán Chillán
  22. 1872VEI 2Osservata
    1872-07-22 – In corso
    Volcán Chillán
  23. 1864VEI 3Osservata
    1864-11-30 – 1865-02-03
    NW flank of Cerro Blanco (Santa Gertrudis)
  24. 1861VEI 2Osservata
    1861-06 – 1863
    NW flank of Cerro Blanco (Santa Gertrudis)
  25. 1860VEI 2Osservata
    1860-07-25 – In corso
    W flank of Volcán Viejo (Volcán Renegado)
  26. 1752VEI 2Osservata
    1752-01-30 – In corso
    Cerro Blanco and Volcán Viejo?
  27. 1749VEI 3Osservata
    1749 – 1751
    Volcán Viejo
  28. 1650 (±50 anni)VEI 3Osservata
    1650 – In corso
    Volcán Viejo
  29. 320 a.C. (±75 anni)VEI ?Stima geologica
    BCE 320 – In corso
    Volcán Viejo
  30. 1510 a.C. (±50 anni)VEI ?Stima geologica
    BCE 1510 – In corso
    Volcán Viejo
  31. 3660 a.C. (±500 anni)VEI ?Stima geologica
    BCE 3660 – In corso
    Volcán Viejo
  32. 6890 a.C. (±500 anni)VEI ?Stima geologica
    BCE 6890 – In corso
    Volcán Viejo

Link esterni

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