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Witori

Kaldera · 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
Tipe
Kaldera
Negara
Papua New Guinea
Wilayah
Southwestern Pacific Volcanic Regions / Bismarck Volcanic Arc
Ketinggian
724 m
Koordinat
-5.574, 150.516
Letusan terakhir
2012
Kondisi tektonik
Subduction zone / Continental crust (> 25 km)
Bentuk lahan
Caldera
Batuan utama
Dacite
Ringkasan geologi

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.

Ringkasan Wikipedia

Ringkasan Inggris

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.

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Riwayat letusan

Ringkasan (VEI dari waktu ke waktu)
Klik pada bar untuk melihat letusan individu
7510 BCE~7193 BCE · 1 letusan · VEI maks. ?4019 BCE~3701 BCE · 1 letusan · VEI maks. 61479 BCE~1162 BCE · 1 letusan · VEI maks. 6845 BCE~527 BCE · 1 letusan · VEI maks. ?108~425 · 1 letusan · VEI maks. 5425~742 · 2 letusan · VEI maks. 6742~1060 · 2 letusan · VEI maks. ?1377~1695 · 2 letusan · VEI maks. 41695~2012 · 9 letusan · VEI maks. 47510 BCE5288 BCE2749 BCE527 BCE1695

Garis waktu rinci

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

Tautan eksternal

⚠ Untuk referensi saja. Bukan untuk tanggap darurat.