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Água de Pau

Agua de Pau

Estratovolcán · Portugal · 947 m

Lagoa do Fogo, seen here from the west, partially fills the younger of two Pleistocene calderas on Agua de Pau stratovolcano in central Sao Miguel Island. The walls of the caldera surrounding the lake rise to a maximum of about 370 m above the surface. Eruptions have occurred both inside the caldera and on the flanks, where multiple cones and domes can be found. Two major explosive eruptions have occurred in the Holocene from the caldera: the Ribeira Cha (8,000 to 12,000 years ago) and Fogo A (about 4,600 years ago).
Lagoa do Fogo, seen here from the west, partially fills the younger of two Pleistocene calderas on Agua de Pau stratovolcano in central Sao Miguel Island. The walls of the caldera surrounding the lake rise to a maximum of about 370 m above the surface. Eruptions have occurred both inside the caldera and on the flanks, where multiple cones and domes can be found. Two major explosive eruptions have occurred in the Holocene from the caldera: the Ribeira Cha (8,000 to 12,000 years ago) and Fogo A (about 4,600 years ago). · Foto: Photo by Rick Wunderman, 1977 (Smithsonian Institution). · Wikimedia Commons
Tipo
Estratovolcán
País
Portugal
Región
Océano Atlántico / Azores-Terceira Rift Volcanic Province
Altitud
947 m
Coordenadas
37.770, -25.470
Última erupción
1564
Contexto tectónico
Rift zone / Oceanic crust (< 15 km)
Forma volcánica
Composite
Roca principal
Trachyte / Trachydacite
Resumen geológico

The Agua de Pau stratovolcano in central Sao Miguel Island contains an outer 4 x 7 km caldera formed about 30,000-45,000 years ago and an inner 2.5 x 3 km caldera that was created about 15,000 years ago. The younger caldera is partially filled by the Lagoa do Fogo caldera lake. Several post-caldera lava domes were emplaced on the northern and western flanks, but activity in the caldera did not resume until about 5000 years ago. The 3 km3 Fogo-A plinian pumice fall deposit was emplaced at this time. Numerous flank cinder cones mark radial and concentric fissures, some of which have been active during historical time. The latest trachytic explosive eruption took place during 1563. Prominent hot springs are located on the NW flank.

Resumen de Wikipedia

Resumen en inglés

Água de Pau Massif is a stratovolcanic complex, located in the central part of the island of São Miguel, in the Portuguese archipelago of the Azores. More recognizable for the Lagoa do Fogo at its centre, the volcanic complex includes centuries of geomorphological structures that include lava domes, cones and encrusted lava flows that have marked its history from, the last, 45,000 years BC.

Wikipedia · CC BY-SA · Leer artículo completo →

Historial de erupciones

Resumen (VEI en el tiempo)
Haga clic en una barra para ver erupciones individuales
6750 BCE~6473 BCE · 1 erupciones · VEI máx. ?4810 BCE~4533 BCE · 1 erupciones · VEI máx. ?3147 BCE~2870 BCE · 1 erupciones · VEI máx. 52316 BCE~2039 BCE · 1 erupciones · VEI máx. ?2039 BCE~1762 BCE · 1 erupciones · VEI máx. 31484 BCE~1207 BCE · 1 erupciones · VEI máx. 499 BCE~178 · 1 erupciones · VEI máx. ?455~733 · 1 erupciones · VEI máx. ?1287~1564 · 2 erupciones · VEI máx. 56750 BCE4810 BCE2593 BCE653 BCE1287

Línea de tiempo detallada

  1. 1564VEI 2Observado
    1564-02-10 – 1564-02-12
    Lagoa do Fogo caldera
  2. 1563VEI 5Observado
    1563-06-28 – 1563-07-26
    Caldera, NW flank (Cerro Queimado)
  3. 700 (±150 años)VEI ?Estimación geológica
    700 – En curso
    WNW flank (Mos)
  4. 160 (±150 años)VEI ?Estimación geológica
    160 – En curso
    NW flank (251 m)
  5. 1290 a. C.VEI 4Estimación geológica
    BCE 1290 – En curso
    Lagoa do Fogo caldera
  6. 1850 a. C. (±500 años)VEI 3Estimación geológica
    BCE 1850 – En curso
    East flank (Lagoa do Congro)
  7. 2210 a. C. (±150 años)VEI ?Estimación geológica
    BCE 2210 – En curso
    East flank (East Congo maar)
  8. 2990 a. C.VEI 5Estimación geológica
    BCE 2990 – En curso
    Lagoa do Fogo caldera and north flank
  9. 4550 a. C. (±100 años)VEI ?Estimación geológica
    BCE 4550 – En curso
    SW flank (449 m)
  10. 6750 a. C. (±200 años)VEI ?Estimación geológica
    BCE 6750 – En curso
    West flank (Pico Joao Fernandes)

Enlaces externos

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