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Monte Veniaminof

Veniaminof

Estratovolcán · United States · 2507 m

A scoria cone on the Veniaminof western summit caldera floor was the source of the dark lava flow that melted through glacial ice. This photo was taken from the SE on 15 June 1984, two months after the eruption ended, and shows the rim of the 8 x 11 km wide caldera in the background. The caldera rim contains Cone Glacier on the west side (to the far left) and is overtopped by glaciers on the south and SE sides.
A scoria cone on the Veniaminof western summit caldera floor was the source of the dark lava flow that melted through glacial ice. This photo was taken from the SE on 15 June 1984, two months after the eruption ended, and shows the rim of the 8 x 11 km wide caldera in the background. The caldera rim contains Cone Glacier on the west side (to the far left) and is overtopped by glaciers on the south and SE sides. · Foto: Photo by Betsy Yount, 1984 (Alaska Volcano Observatory, U.S. Geological Survey). · Wikimedia Commons
Tipo
Estratovolcán
País
United States
Región
North America Volcanic Regions / Aleutian Ridge Volcanic Arc
Altitud
2507 m
Coordenadas
56.170, -159.380
Última erupción
2021
Contexto tectónico
Subduction zone / Continental crust (> 25 km)
Forma volcánica
Composite
Roca principal
Andesite / Basaltic Andesite
Resumen geológico

Veniaminof, on the Alaska Peninsula, is truncated by a steep-walled, 8 x 11 km, glacier-filled caldera that formed around 3,700 years ago. The caldera rim is up to 520 m high on the north, is deeply notched on the west by Cone Glacier, and is covered by an ice sheet on the south. Post-caldera vents are located along a NW-SE zone bisecting the caldera that extends 55 km from near the Bering Sea coast, across the caldera, and down the Pacific flank. Historical eruptions probably all originated from the westernmost and most prominent of two intra-caldera cones, which rises about 300 m above the surrounding icefield. The other cone is larger, and has a summit crater or caldera that may reach 2.5 km in diameter, but is more subdued and barely rises above the glacier surface.

Resumen de Wikipedia

Resumen breve — abre el artículo completo para más detalle.

El monte Veniaminof es un estratovolcán activo en la península de Alaska.

Wikipedia · CC BY-SA · Leer artículo completo →

Historial de erupciones

Resumen (VEI en el tiempo)
Haga clic en una barra para ver erupciones individuales
1750 BCE~1552 BCE · 1 erupciones · VEI máx. 61823~2021 · 25 erupciones · VEI máx. 31750 BCE758 BCE3610291823

Línea de tiempo detallada

  1. 2021VEI 1Observado
    2021-02-28 – 2021-04-05
  2. 2018VEI 1Observado
    2018-09-04 – 2018-12-23
    Intracaldera summit cone and its S flank
  3. 2013VEI 3Observado
    2013-06-13 – 2013-10-12
    Western intracaldera cone and SE flank
  4. 2008VEI 1Observado
    2008-02-22 – 2008-03-01
    Western intracaldera cone
  5. 2006VEI 1Observado
    2006-03-03 – 2006-09-07
    Western intracaldera cone
  6. 2005VEI 2Observado
    2005-01-04 – 2005-02-14
    Western intracaldera cone
  7. 2005VEI 1Observado
    2005-09-07 – 2005-11-04
    Western intracaldera cone
  8. 2004VEI 2Observado
    2004-02-16 – 2004-09-05
    Western intracaldera cone
  9. 2002VEI 1Observado
    2002-09-24 – 2003-03-23
    Western intracaldera cone
  10. 1995VEI 1Observado
    1995-04-17 – 1995-04-17
    Western intracaldera cone
  11. 1995VEI 1Observado
    1995-11-15 – 1995-11-30
    Western intracaldera cone
  12. 1993VEI 2Observado
    1993-07-30 – 1994-09-28
    Western cone and Half Cone
  13. 1987VEI 1Observado
    1987-03-19 – 1987-03-19
    Western intracaldera cone
  14. 1984VEI 2Observado
    1984-11-29 – 1984-12-06
    Western intracaldera cone
  15. 1983VEI 3Observado
    1983-06-02 – 1984-04-17
    Western intracaldera cone
  16. 1956VEI 3Observado
    1956-03-16 – 1956-05-23
    Western intracaldera cone
  17. 1944VEI 2Observado
    1944-03-28 – En curso
    Western intracaldera cone
  18. 1939VEI 3Observado
    1939-05-23 – 1939-06-26
    Western intracaldera cone
  19. 1939VEI 2Observado
    1939-11 – En curso
    Western intracaldera cone
  20. 1930VEI 2Observado
    1930-06 – En curso
    Western intracaldera cone
  21. 1892VEI 3Observado
    1892-08-28 – 1892-08-30
    Western intracaldera cone
  22. 1874VEI 2Observado
    1874-07-15 – En curso
    Western intracaldera cone
  23. 1852VEI 2Estimación geológica
    1852 – En curso
    Western intracaldera cone
  24. 1838VEI 3Observado
    1838-08-04 – 1839-04
    Western intracaldera cone
  25. 1830VEI 2Estimación geológica
    1830 – 1838
  26. 1750 a. C.VEI 6Estimación geológica
    BCE 1750 – En curso

Enlaces externos

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