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Alaid

Estratovolcán · Russia · 2285 m

An ash plume rises above Alaid on 30 April 1981, at the peak of an eruption that began on 27 April (seen here from the N). The plume extended 2,000 km to the SE. The volcano has a 1.5-km-wide summit crater and numerous cones across the lower flanks. Explosive eruptions in 1790 and 1981 were among the largest in the Kuril Islands.
An ash plume rises above Alaid on 30 April 1981, at the peak of an eruption that began on 27 April (seen here from the N). The plume extended 2,000 km to the SE. The volcano has a 1.5-km-wide summit crater and numerous cones across the lower flanks. Explosive eruptions in 1790 and 1981 were among the largest in the Kuril Islands. · Foto: Photo courtesy of Anatoli Khrenov, 1981 (Institute of Volcanology, Petropavlovsk). · Wikimedia Commons
Tipo
Estratovolcán
País
Russia
Región
Northwestern Pacific Volcanic Regions / Kuril Volcanic Arc
Altitud
2285 m
Coordenadas
50.861, 155.565
Última erupción
2022
Contexto tectónico
Subduction zone / Continental crust (> 25 km)
Forma volcánica
Composite
Roca principal
Basalt / Picro-Basalt
Resumen geológico

The highest and northernmost volcano of the Kuril Islands, Alaid is a symmetrical stratovolcano when viewed from the north, but has a 1.5-km-wide summit crater that is breached open to the south. This basaltic to basaltic andesite volcano is the northernmost of a chain constructed west of the main Kuril archipelago. Numerous pyroclastic cones are present the lower flanks, particularly on the NW and SE sides, including an offshore cone formed during the 1933-34 eruption. Strong explosive eruptions have occurred from the summit crater beginning in the 18th century. Reports of eruptions in 1770, 1789, 1821, 1829, 1843, 1848, and 1858 were considered incorrect by Gorshkov (1970). Explosive eruptions in 1790 and 1981 were among the largest reported in the Kuril Islands.

Resumen de Wikipedia

Resumen en inglés

Alaid, also called Atlasov due to its location or Araido in Japanese, is a volcano on Atlasov Island of the Kuril Islands, Russia. It is the northernmost volcano of the islands, and one of the most active. The height is disputed between 2,285 metres (7,497 ft) to 2,339 metres (7,674 ft) tall. It is the highest peak of the Kuril Islands.

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Historial de erupciones

Resumen (VEI en el tiempo)
Haga clic en una barra para ver erupciones individuales
1790~1813 · 1 erupciones · VEI máx. 41836~1860 · 1 erupciones · VEI máx. 31860~1883 · 1 erupciones · VEI máx. 31883~1906 · 1 erupciones · VEI máx. 21929~1952 · 1 erupciones · VEI máx. 21952~1976 · 2 erupciones · VEI máx. 31976~1999 · 6 erupciones · VEI máx. 41999~2022 · 4 erupciones · VEI máx. 217901836190619521999

Línea de tiempo detallada

  1. 2022VEI 2Observado
    2022-09-10 – 2022-11-26
  2. 2018VEI 1Observado
    2018-08-21 – 2018-08-21
    Summit crater
  3. 2015VEI 1Observado
    2015-09-29 – 2016-08-11
    Summit crater
  4. 2012VEI 2Observado
    2012-10-05 – 2012-12-12
    Summit crater
  5. 1997VEI ?Estimación geológica
    1997-08-23 – 1997-08-23
  6. 1996VEI 2Observado
    1996-12-03 – En curso
  7. 1986VEI 2Observado
    1986-05-25 – 1986-05-28
  8. 1982VEI 2Observado
    1982-03-29 – 1982-03-29
  9. 1981VEI 4Observado
    1981-04-27 – 1981-06-05
  10. 1981VEI 2Observado
    1981-11-25 – En curso
  11. 1973VEI ?Estimación geológica
    1973-07-02 – En curso
  12. 1972VEI 3Observado
    1972-06-18 – 1972-09-11
    NW foot
  13. 1933VEI 2Observado
    1933-11-13 – 1934-08
    East submarine flank (Taketomi)
  14. 1894VEI 2Observado
    1894 – En curso
  15. 1860VEI 3Observado
    1860-07-07 – 1860-07-09
  16. 1854VEI 3Observado
    1854-06-27 – En curso
  17. 1790VEI 4Observado
    1790 – 1793

Enlaces externos

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