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Água de Pau

Agua de Pau

Stratovolkan · 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
Tipe
Stratovolkan
Negara
Portugal
Wilayah
Atlantic Ocean Volcanic Regions / Azores-Terceira Rift Volcanic Province
Ketinggian
947 m
Koordinat
37.770, -25.470
Letusan terakhir
1564
Kondisi tektonik
Rift zone / Oceanic crust (< 15 km)
Bentuk lahan
Composite
Batuan utama
Trachyte / Trachydacite
Ringkasan geologi

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.

Ringkasan Wikipedia

Ringkasan Inggris

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.

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Riwayat letusan

Ringkasan (VEI dari waktu ke waktu)
Klik pada bar untuk melihat letusan individu
6750 BCE~6473 BCE · 1 letusan · VEI maks. ?4810 BCE~4533 BCE · 1 letusan · VEI maks. ?3147 BCE~2870 BCE · 1 letusan · VEI maks. 52316 BCE~2039 BCE · 1 letusan · VEI maks. ?2039 BCE~1762 BCE · 1 letusan · VEI maks. 31484 BCE~1207 BCE · 1 letusan · VEI maks. 499 BCE~178 · 1 letusan · VEI maks. ?455~733 · 1 letusan · VEI maks. ?1287~1564 · 2 letusan · VEI maks. 56750 BCE4810 BCE2593 BCE653 BCE1287

Garis waktu rinci

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

Tautan eksternal

⚠ Untuk referensi saja. Bukan untuk tanggap darurat.