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Volcán Wolf

Wolf

Vulcano a scudo · Ecuador · 1710 m

Wolf, the highest volcano of the Galápagos Islands, is located near the equator at the N end of the archipelago's largest island, Isabela. The summit caldera is 5.5 x 7 km and 600 m deep, with recent lava flows covering the broad caldera floor. Prominent unvegetated lava flows are visible on the flanks to the sea. Wolf's 1797 eruption was the first documented in the Galápagos Islands.
Wolf, the highest volcano of the Galápagos Islands, is located near the equator at the N end of the archipelago's largest island, Isabela. The summit caldera is 5.5 x 7 km and 600 m deep, with recent lava flows covering the broad caldera floor. Prominent unvegetated lava flows are visible on the flanks to the sea. Wolf's 1797 eruption was the first documented in the Galápagos Islands. · Foto: Photo by Lee Siebert, 1978 (Smithsonian Institution). · Wikimedia Commons
Tipo
Vulcano a scudo
Paese
Ecuador
Regione
Eastern Pacific Volcanic Regions / Galapagos Hotspot Volcano Group
Altitudine
1710 m
Coordinate
0.020, -91.350
Ultima eruzione
2022
Contesto tettonico
Rift zone / Oceanic crust (< 15 km)
Forma vulcanica
Shield
Roccia principale
Basalt / Picro-Basalt
Sintesi geologica

Volcán Wolf, the highest volcano of the Galápagos Islands, straddles the equator at the north end of the archipelago's largest island, Isabela. The edifice has steeper slopes than most other Isabela volcanoes, reaching angles up to 35°. The summit caldera is 6 x 7 km across and 700 m deep. A prominent bench on the west side of the caldera rises 450 m above the caldera floor, much of which is covered by a lava flow erupted in 1982. Radial fissures concentrated along diffuse rift zones extend down the N, NW, and SE flanks, and submarine vents lie beyond the N and NW fissures. Similar unvegetated flows originating from a circumferential chain of spatter and scoria cones on the eastern caldera rim drape the forested flanks to the sea. The proportion of aa lava flows exceeds that of other Galápagos volcanoes. An eruption in in 1797 was the first observed and documented in the Galápagos Islands.

Sintesi da Wikipedia

Riassunto in inglese

Wolf Volcano, also known as Mount Whiton, is the highest peak in the Galápagos Islands. It is situated on Isabela Island and reaches 1,710 m (5,610 ft). It is a shield volcano with a characteristic upturned soup bowl shape.

Wikipedia · CC BY-SA · Leggi l'articolo completo →

Storia delle eruzioni

Riepilogo (VEI nel tempo)
Fai clic su una barra per vedere le singole eruzioni
150~337 · 1 eruzioni · VEI max. 0899~1086 · 1 eruzioni · VEI max. 01273~1460 · 1 eruzioni · VEI max. 01648~1835 · 2 eruzioni · VEI max. 21835~2022 · 12 eruzioni · VEI max. 4150524108614601835

Cronologia dettagliata

  1. 2022VEI 2Osservata
    2022-01-06 – 2022-04-14
  2. 2015VEI 4Osservata
    2015-05-25 – 2015-07-16
    a fissure on the SE edge of the caldera, on the NE, E, and SE flanks, and within the summit caldera
  3. 1982VEI 1Osservata
    1982-08-28 – 1982-09-06
    Caldera and SE flank (875 m)
  4. 1973VEI ?Stima geologica
    1973-10-25 – 1973-10-29
  5. 1963VEI 0Osservata
    1963-03-04 – 1963-03-16
    SE flank (610 m)
  6. 1948VEI 2Osservata
    1948-01-24 – 1948-01-31
    SE flank (1200 m)
  7. 1938VEI ?Osservata
    1938 – In corso
  8. 1935VEI ?Osservata
    1935-02 – In corso
  9. 1933VEI 0Osservata
    1933 – In corso
  10. 1925VEI 1Osservata
    1925-04-11 – 1926-03-26
    ESE flank
  11. 1859VEI ?Osservata
    1859-08-26 – 1859-08-29
  12. 1849VEI 0Osservata
    1849-09-27 – 1849-09-27
    Volcano Uncertain: either Wolf or Darwin
  13. 1800VEI 2Osservata
    1800-08-21 – 1800-08-21
  14. 1797VEI ?Osservata
    1797-08 – In corso
  15. 1450VEI 0Stima geologica
    1450 – In corso
    Lower NE and SE flanks
  16. 950VEI 0Stima geologica
    950 – In corso
    Lower NE flank
  17. 150 (±800 anni)VEI 0Stima geologica
    150 – In corso
    Lower SW flank

Link esterni

⚠ Solo a scopo informativo. Non adatto a situazioni di emergenza.