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Witori

Caldera · Papua New Guinea · 724m

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. · Photo: Photo courtesy of Elliot Endo, 2002 (U. S. Geological Survey Volcanic Disaster Assistance Program). · Wikimedia Commons
Type
Caldera
Country
Papua New Guinea
Region
Southwestern Pacific Volcanic Regions / Bismarck Volcanic Arc
Elevation
724m
Coordinates
-5.574, 150.516
Last eruption
2012
Tectonic setting
Subduction zone / Continental crust (> 25 km)
Landform
Caldera
Major rock type
Dacite
Geological summary

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.

From Wikipedia

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 · Read full article →

Eruption history

Summary (VEI over time)
Click a bar to see individual eruptions
7510 BCE~7193 BCE · 1 eruptions · max VEI ?4019 BCE~3701 BCE · 1 eruptions · max VEI 61479 BCE~1162 BCE · 1 eruptions · max VEI 6845 BCE~527 BCE · 1 eruptions · max VEI ?108~425 · 1 eruptions · max VEI 5425~742 · 2 eruptions · max VEI 6742~1060 · 2 eruptions · max VEI ?1377~1695 · 2 eruptions · max VEI 41695~2012 · 9 eruptions · max VEI 47510 BCE5288 BCE2749 BCE527 BCE1695

Detailed timeline

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

External links

⚠ For reference only. Not for emergency response.