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Monte Camerun

Cameroon

Stratovulcano · Cameroon · 4095 m

Plumes rise from a crater and a lava flow near the summit of Mount Cameroon in 1982. More than 100 small cinder cones, often fissure-controlled parallel to the long axis of the massive 1,400 km3 volcano, occur on the flanks and surrounding lowlands. During historical time, explosive and effusive eruptions have occurred from both summit and flank vents. In 1922, a lava flow from a SW-flank vent reached the Atlantic Ocean.
Plumes rise from a crater and a lava flow near the summit of Mount Cameroon in 1982. More than 100 small cinder cones, often fissure-controlled parallel to the long axis of the massive 1,400 km3 volcano, occur on the flanks and surrounding lowlands. During historical time, explosive and effusive eruptions have occurred from both summit and flank vents. In 1922, a lava flow from a SW-flank vent reached the Atlantic Ocean. · Foto: Photo by Daniel Kergomard, 1982 (courtesy of J.G. Fitton, BRGM, France). · Wikimedia Commons
Tipo
Stratovulcano
Paese
Cameroon
Regione
Northern Africa Volcanic Regions / Western Africa Volcanic Province
Altitudine
4095 m
Coordinate
4.203, 9.170
Ultima eruzione
2000
Contesto tettonico
Intraplate / Continental crust (> 25 km)
Forma vulcanica
Composite
Roccia principale
Trachybasalt / Tephrite Basanite
Sintesi geologica

The massive steep-sided Mount Cameroon rises above the coast of west Cameroon, overlooking the Bight of Biafra, part of the Gulf of Guinea. The dominantly basaltic-to-trachybasaltic edifice forms a volcanic horst constructed above a basement of Precambrian metamorphic rocks covered with Cretaceous to Quaternary sediments. More than 100 small cinder cones, often fissure-controlled parallel to the long axis of the 1,400 km3 edifice, occur on the flanks and surrounding lowlands. A large satellitic peak, Etinde (also known as Little Cameroon), is located on the S flank near the coast. The first known reported activity was in the 5th century BCE by the Carthaginian navigator Hannon. Additional activity has frequently been reported since about 1800 CE, consisting of moderate explosive and effusive eruptions from both summit and flank vents. A 1922 SW-flank eruption produced a lava flow that reached the Atlantic coast, and a lava flow from a 1999 S-flank eruption stopped only 200 m from the sea. Explosive activity from two vents on the upper SE flank was reported in May 2000.

Sintesi da Wikipedia

Riassunto in inglese

Little Mount Cameroon, also known as Etinde, is a 1,713 m (5,620 ft) peak on the southern flank of Mount Cameroon. It is a subvent stratovolcano of the larger volcano nearby.

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
450 BCE~262 BCE · 1 eruzioni · VEI max. 31623~1812 · 2 eruzioni · VEI max. 31812~2000 · 16 eruzioni · VEI max. 2450 BCE11568112461812

Cronologia dettagliata

  1. 2000VEI 2Osservata
    2000-05-28 – 2000-09-15
    Upper SW flank (4000, 3470-3220, 2750 m)
  2. 1999VEI 2Osservata
    1999-03-28 – 1999-04-17
    South flank (2650 and 1500 m)
  3. 1989VEI 1Osservata
    1989-05-29 – 1989-05-29
    NE flank (2860 m)
  4. 1982VEI 2Osservata
    1982-10-16 – 1982-11-12
    SW flank (2500 m)
  5. 1959VEI 2Osservata
    1959-01-23 – 1959-03-19
    NE flank (3000-1500 m)
  6. 1954VEI 2Osservata
    1954-06-28 – 1954-07-26
    Immediately south of summit
  7. 1925VEI ?Osservata
    1925 – In corso
    Near Fako
  8. 1922VEI 2Osservata
    1922-02-03 – 1922-08-24
    Mateer (W, 3300 m), Waldau (SW, 1300 m)
  9. 1909VEI 2Osservata
    1909-04-28 – 1909-06
    NE flank (2400 m; Okoli Craters)
  10. 1871VEI 2Osservata
    1871 – In corso
  11. 1868VEI 2Osservata
    1868 – In corso
    SW flank (2250 m) and NW flank
  12. 1866VEI 2Osservata
    1866-01 – In corso
  13. 1865VEI 2Osservata
    1865 – In corso
  14. 1852VEI 2Osservata
    1852 – In corso
    West flank
  15. 1838VEI 2Osservata
    1838-12-31 – In corso
    Near Fako
  16. 1825 (±10 anni)VEI 2Osservata
    1825 – In corso
  17. 1807 (±8 anni)VEI 3Osservata
    1807 – In corso
    South flank (2600 m)
  18. 1650 (±50 anni)VEI 3Osservata
    1650 – In corso
  19. 450 a.C. (±50 anni)VEI 3Osservata
    BCE 450 – In corso

Link esterni

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