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Taveuni

Vulcano a scudo · Fiji · 1241 m

Taveuni Island in Fiji is situated along a larger ridge and is approximately 40 km long, shown in this composite image of Sentinel-2 (3 and 6 July) and Landsat 8 (1 July) 2019 images courtesy of Planet Labs (N is at the top). Around 150 vents are aligned along the length of the NW-SE oriented island. The Lake Tagimoucea Basin rift zone is about one-third of the way down and contains lavas offset by faulting.
Taveuni Island in Fiji is situated along a larger ridge and is approximately 40 km long, shown in this composite image of Sentinel-2 (3 and 6 July) and Landsat 8 (1 July) 2019 images courtesy of Planet Labs (N is at the top). Around 150 vents are aligned along the length of the NW-SE oriented island. The Lake Tagimoucea Basin rift zone is about one-third of the way down and contains lavas offset by faulting. · Foto: Satellite image courtesy of Planet Labs Inc., 2019 (https://www.planet.com/). · Wikimedia Commons
Tipo
Vulcano a scudo
Paese
Fiji
Regione
Southwestern Pacific Volcanic Regions / Fiji Volcanic Arc
Altitudine
1241 m
Coordinate
-16.841, -179.964
Ultima eruzione
1550
Contesto tettonico
Subduction zone / Crustal thickness unknown
Forma vulcanica
Shield
Roccia principale
Basalt / Picro-Basalt
Sintesi geologica

Taveuni, the third largest of the Fiji islands, is known as the "Garden Island" due to its rich volcanic soils. The massive, elongated basaltic shield volcano includes approximately 150 volcanic cones along a NE-SW rift that extends the length of the 40-km-long island. A few cones in the central part occur to the west of the axial rift zone. At least 58 eruptions have occurred since the first known human settlements around 950-750 BCE; all of these eruptions affected the southern two-thirds of the island. A period of voluminous eruptions between about 300 and 500 CE caused abandonment of the southern part the island until about 1100 CE. The latest known eruption produced a lava flow at the southern tip sometime between about 1450 and 1650 CE.

Sintesi da Wikipedia

Riassunto in inglese

Taveuni is elongated shield volcano on Taveuni Island, Fiji, and its peak reaches 1,241 m (4,072 ft) above sea level.

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
8040 BCE~7720 BCE · 1 eruzioni · VEI max. 26761 BCE~6442 BCE · 1 eruzioni · VEI max. 26122 BCE~5802 BCE · 1 eruzioni · VEI max. 25483 BCE~5163 BCE · 1 eruzioni · VEI max. 24843 BCE~4524 BCE · 1 eruzioni · VEI max. 23884 BCE~3565 BCE · 1 eruzioni · VEI max. 23245 BCE~2925 BCE · 1 eruzioni · VEI max. 21966 BCE~1647 BCE · 1 eruzioni · VEI max. 21647 BCE~1327 BCE · 1 eruzioni · VEI max. 21327 BCE~1007 BCE · 4 eruzioni · VEI max. 2688 BCE~368 BCE · 3 eruzioni · VEI max. 2368 BCE~48 BCE · 3 eruzioni · VEI max. 248 BCE~271 · 2 eruzioni · VEI max. 1271~591 · 5 eruzioni · VEI max. 2591~911 · 3 eruzioni · VEI max. 2911~1230 · 2 eruzioni · VEI max. 21230~1550 · 3 eruzioni · VEI max. 28040 BCE5802 BCE3245 BCE1007 BCE1230

Cronologia dettagliata

  1. 1550 (±100 anni)VEI 0Stima geologica
    1550 – In corso
    Near South Cape
  2. 1420 (±20 anni)VEI 0Stima geologica
    1420 – In corso
    Central Taveuni (Tutu area)
  3. 1350 (±75 anni)VEI 2Stima geologica
    1350 – In corso
  4. 1160 (±150 anni)VEI 2Stima geologica
    1160 – In corso
    Southern Taveuni (Vana Kei Vuna)
  5. 1020VEI 2Stima geologica
    1020 – In corso
  6. 880VEI 2Stima geologica
    880 – In corso
  7. 770VEI 2Stima geologica
    770 – In corso
  8. 640 (±40 anni)VEI 2Stima geologica
    640 – In corso
  9. 520 (±100 anni)VEI 2Stima geologica
    520 – In corso
    South Taveuni (Tavuyaga, Ngatutu, Ngatavo)
  10. 480 (±75 anni)VEI 2Stima geologica
    480 – In corso
    Central Taveuni (Tagimoucea area)
  11. 400 (±50 anni)VEI 2Stima geologica
    400 – In corso
  12. 350VEI 2Stima geologica
    350 – In corso
    Central Taveuni (Des Voeux Peak area)
  13. 320 (±100 anni)VEI 2Stima geologica
    320 – In corso
  14. 270VEI 1Stima geologica
    270 – In corso
    Central Taveuni (west of Lake Tagimoucea)
  15. 220 (±100 anni)VEI 0Stima geologica
    220 – In corso
  16. 90 a.C. (±200 anni)VEI 2Stima geologica
    BCE 90 – In corso
  17. 200 a.C.VEI 2Stima geologica
    BCE 200 – In corso
  18. 330 a.C. (±75 anni)VEI 2Stima geologica
    BCE 330 – In corso
  19. 400 a.C. (±20 anni)VEI 2Stima geologica
    BCE 400 – In corso
  20. 600 a.C.VEI 2Stima geologica
    BCE 600 – In corso
  21. 680 a.C.VEI 2Stima geologica
    BCE 680 – In corso
  22. 1020 a.C.VEI 2Stima geologica
    BCE 1020 – In corso
  23. 1100 a.C.VEI 2Stima geologica
    BCE 1100 – In corso
  24. 1200 a.C.VEI 2Stima geologica
    BCE 1200 – In corso
  25. 1300 a.C.VEI 2Stima geologica
    BCE 1300 – In corso
  26. 1450 a.C.VEI 2Stima geologica
    BCE 1450 – In corso
  27. 1700 a.C.VEI 2Stima geologica
    BCE 1700 – In corso
  28. 3200 a.C. (±150 anni)VEI 2Stima geologica
    BCE 3200 – In corso
  29. 3580 a.C. (±200 anni)VEI 2Stima geologica
    BCE 3580 – In corso
  30. 4800 a.C. (±100 anni)VEI 2Stima geologica
    BCE 4800 – In corso
  31. 5230 a.C. (±100 anni)VEI 2Stima geologica
    BCE 5230 – In corso
  32. 5920 a.C. (±75 anni)VEI 2Stima geologica
    BCE 5920 – In corso
  33. 6560 a.C. (±75 anni)VEI 2Stima geologica
    BCE 6560 – In corso
  34. 8040 a.C. (±50 anni)VEI 2Stima geologica
    BCE 8040 – In corso

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