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Ubinas

Estratovolcán · Peru · 5608 m

Volcán Ubinas, seen here from the west, is Perú's most active volcano. A small, 1.2-km-wide caldera that cuts the top of Ubinas gives it a truncated appearance. The upper slopes of the stratovolcano steepen to nearly 45 degrees. The steep-walled, 150-m-deep caldera contains an ash cone with a 500-m-wide funnel-shaped vent that is 200-m deep. Holocene lava flows are visible on the volcano's flanks, but historical activity, documented since the 16th century, has consisted of intermittent minor explosive eruptions.
Volcán Ubinas, seen here from the west, is Perú's most active volcano. A small, 1.2-km-wide caldera that cuts the top of Ubinas gives it a truncated appearance. The upper slopes of the stratovolcano steepen to nearly 45 degrees. The steep-walled, 150-m-deep caldera contains an ash cone with a 500-m-wide funnel-shaped vent that is 200-m deep. Holocene lava flows are visible on the volcano's flanks, but historical activity, documented since the 16th century, has consisted of intermittent minor explosive eruptions. · Foto: Photo by Norm Banks, 1988 (U.S. Geological Survey). · Wikimedia Commons
Tipo
Estratovolcán
País
Peru
Región
América del Sur / Central Andean Volcanic Arc
Altitud
5608 m
Coordenadas
-16.345, -70.897
Última erupción
2024
Contexto tectónico
Subduction zone / Continental crust (> 25 km)
Forma volcánica
Composite
Roca principal
Andesite / Basaltic Andesite
Resumen geológico

The truncated appearance of Ubinas, Perú's most active volcano, is a result of a 1.4-km-wide crater at the summit. It is the northernmost of three young volcanoes located along a regional structural lineament about 50 km behind the main volcanic front. The growth and destruction of Ubinas I was followed by construction of Ubinas II beginning in the mid-Pleistocene. The upper slopes of the andesitic-to-rhyolitic Ubinas II stratovolcano are composed primarily of andesitic and trachyandesitic lava flows and steepen to nearly 45°. The steep-walled, 150-m-deep summit crater contains an ash cone with a 500-m-wide funnel-shaped vent that is 200 m deep. Debris-avalanche deposits from the collapse of the SE flank about 3,700 years ago extend 10 km from the volcano. Widespread Plinian pumice-fall deposits include one from about 1,000 years ago. Holocene lava flows are visible on the flanks, but activity documented since the 16th century has consisted of intermittent minor-to-moderate explosive eruptions.

Resumen de Wikipedia

Resumen en inglés

Ubinas is an active stratovolcano in the Moquegua Region of southern Peru, approximately 60 kilometres (37 mi) east of the city of Arequipa. Part of the Central Volcanic Zone of the Andes, it rises 5,672 metres (18,609 ft) above sea level. The volcano's summit is cut by a 1.4-kilometre-wide (0.87 mi) and 150-metre-deep (490 ft) caldera, which itself contains a smaller crater. Below the summit, Ubinas has the shape of an upwards-steepening cone with a prominent notch on the southern side. The gently sloping lower part of the volcano is also known as Ubinas I and the steeper upper part as Ubinas II; they represent different stages in the volcano's geological history.

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Historial de erupciones

Resumen (VEI en el tiempo)
Haga clic en una barra para ver erupciones individuales
8560 BCE~8207 BCE · 1 erupciones · VEI máx. ?7149 BCE~6796 BCE · 1 erupciones · VEI máx. ?966~1318 · 1 erupciones · VEI máx. 51318~1671 · 4 erupciones · VEI máx. 31671~2024 · 21 erupciones · VEI máx. 38560 BCE6090 BCE3268 BCE798 BCE1671

Línea de tiempo detallada

  1. 2024VEI 2Observado
    2024-05-06 – 2024-06-11
  2. 2023VEI 3Observado
    2023-06-22 – 2023-12-15
  3. 2019VEI 2Observado
    2019-06-24 – 2019-09-12
  4. 2016VEI 2Observado
    2016-09-13 – 2017-03-02
    Summit crater
  5. 2013VEI 2Observado
    2013-09-01 – 2016-02-27
    Summit crater
  6. 2010VEI 1Observado
    2010-07-18 – 2010-07-18
  7. 2006VEI 2Observado
    2006-03-25 – 2009-07-04
  8. 1969VEI 2Observado
    1969-06-16 – En curso
  9. 1956VEI 2Observado
    1956-05-16 – 1956-10-21
  10. 1951VEI 2Observado
    1951-07-23 – En curso
  11. 1937VEI 2Observado
    1937-06-16 – En curso
  12. 1907VEI 2Observado
    1907-07-02 – En curso
  13. 1906VEI 2Observado
    1906-10-16 – En curso
  14. 1869VEI 2Observado
    1869-10-16 – En curso
  15. 1867VEI 2Observado
    1867-05-24 – 1867-05-28
  16. 1865VEI 2Observado
    1865-07-02 – En curso
  17. 1862VEI 2Observado
    1862-07-02 – En curso
  18. 1830VEI 2Observado
    1830-07-02 – En curso
  19. 1826VEI ?Estimación geológica
    1826-07-02 – En curso
  20. 1784VEI 2Observado
    1784 – En curso
  21. 1677VEI 3Observado
    1677 – En curso
  22. 1667VEI 3Observado
    1667 – En curso
  23. 1662VEI 3Observado
    1662 – En curso
  24. 1600VEI 2Estimación geológica
    1600 – En curso
  25. 1550 (±50 años)VEI 3Observado
    1550 – En curso
  26. 1082 (±82 años)VEI 5Estimación geológica
    1082 – En curso
  27. 6850 a. C. (±150 años)VEI ?Estimación geológica
    BCE 6850 – En curso
  28. 8560 a. C. (±300 años)VEI ?Estimación geológica
    BCE 8560 – En curso

Enlaces externos

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