Vai al contenuto principale
← Torna alla mappa
⇄ Confronta

Witori

Caldera · Papua New Guinea · 724 m

Recently-emplaced lava flows are seen along a SSE line of vents leading towards the summit of Pago in this 16 September 2002 view. The Pago cone that was constructed within the 5.5 x 7.5 km Witori caldera, which formed around 3,300 years ago. Since its formation a few hundred years ago the cone has grown to a height above the caldera rim. A series of ten lava flows, one of which underlies the area of scorched vegetation left of the 2002 lava flows, cover much of the caldera floor.
Recently-emplaced lava flows are seen along a SSE line of vents leading towards the summit of Pago in this 16 September 2002 view. The Pago cone that was constructed within the 5.5 x 7.5 km Witori caldera, which formed around 3,300 years ago. Since its formation a few hundred years ago the cone has grown to a height above the caldera rim. A series of ten lava flows, one of which underlies the area of scorched vegetation left of the 2002 lava flows, cover much of the caldera floor. · Foto: Photo courtesy of Elliot Endo, 2002 (U. S. Geological Survey Volcanic Disaster Assistance Program). · Wikimedia Commons
Tipo
Caldera
Paese
Papua New Guinea
Regione
Southwestern Pacific Volcanic Regions / Bismarck Volcanic Arc
Altitudine
724 m
Coordinate
-5.574, 150.516
Ultima eruzione
2012
Contesto tettonico
Subduction zone / Continental crust (> 25 km)
Forma vulcanica
Caldera
Roccia principale
Dacite
Sintesi geologica

The active Pago cone has grown within the Witori caldera (5.5 x 7.5 km) on the northern coast of central New Britain contains the active Pago cone. The gently sloping outer caldera flanks consist primarily of dacitic pyroclastic-flow and airfall deposits produced during a series of five major explosive eruptions from about 5,600 to 1,200 years ago, many of which may have been associated with caldera formation. Pago cone may have formed less than 350 years ago; it has grown to a height above the caldera rim, and a series of ten dacitic lava flows from it covers much of the caldera floor. The youngest of these was erupted during 2002-2003 from vents extending from the summit nearly to the NW caldera wall. The Buru caldera cuts the SW flank.

Sintesi da Wikipedia

Riassunto in inglese

The volcano Pago is located East of Kimbe, West New Britain Province, Papua New Guinea. Pago is a young post-caldera cone within the Witori Caldera. The Buru Caldera cuts the SW flank of the Witori volcano. Biggest eruptions were at 4000±200 BC, VEI 6, 10 cubic kilometres (2.5 mi.3); 1370±100 BC, VEI6, 30 km3 (7 mi.3); and 710±75 AD, VEI 6, 20 km3 (5 mi.3) of tephra.

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
7510 BCE~7193 BCE · 1 eruzioni · VEI max. ?4019 BCE~3701 BCE · 1 eruzioni · VEI max. 61479 BCE~1162 BCE · 1 eruzioni · VEI max. 6845 BCE~527 BCE · 1 eruzioni · VEI max. ?108~425 · 1 eruzioni · VEI max. 5425~742 · 2 eruzioni · VEI max. 6742~1060 · 2 eruzioni · VEI max. ?1377~1695 · 2 eruzioni · VEI max. 41695~2012 · 9 eruzioni · VEI max. 47510 BCE5288 BCE2749 BCE527 BCE1695

Cronologia dettagliata

  1. 2012VEI 2Osservata
    2012-05-03 – 2012-07-11
    Pago
  2. 2007VEI 1Osservata
    2007-08-28 – 2007-08-28
    Pago
  3. 2004VEI 1Stima geologica
    2004-02-24 – 2004-02-24
    Pago
  4. 2002VEI 3Osservata
    2002-08-03 – 2003-03-26
    Pago (summit and NW flank)
  5. 1933VEI 2Osservata
    1933-07 – 1933-08
    Pago
  6. 1920 (±2 anni)VEI 0Osservata
    1920 – In corso
    Pago
  7. 1911VEI 3Osservata
    1911 – 1918-05
    Pago
  8. 1800VEI 4Stima geologica
    1800 – In corso
  9. 1730 (±25 anni)VEI ?Stima geologica
    1730 – In corso
  10. 1550VEI 4Stima geologica
    1550 – In corso
  11. 1450VEI ?Stima geologica
    1450 – In corso
  12. 1050 (±100 anni)VEI ?Stima geologica
    1050 – In corso
  13. 950VEI ?Stima geologica
    950 – In corso
  14. 710 (±75 anni)VEI 6Stima geologica
    710 – In corso
  15. 690 (±90 anni)VEI 5Stima geologica
    690 – In corso
  16. 310 (±100 anni)VEI 5Stima geologica
    310 – In corso
  17. 640 a.C. (±300 anni)VEI ?Stima geologica
    BCE 640 – In corso
  18. 1370 a.C. (±160 anni)VEI 6Stima geologica
    BCE 1370 – In corso
  19. 4000 a.C. (±210 anni)VEI 6Stima geologica
    BCE 4000 – In corso
  20. 7510 a.C. (±150 anni)VEI ?Stima geologica
    BCE 7510 – In corso
    Witori

Link esterni

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