본문으로 건너뛰기
← 지도로 돌아가기
⇄ 비교

Karkar Island

Karkar

성층화산 · Papua New Guinea · 1839m

An ash plume rises above the summit of Karkar volcano in 1979. There are two nested summit calderas at the summit of the forested volcano resulting in a broad, low profile. The 5.5-km-wide outer caldera was formed during one or more eruptions, the last of which occurred 9,000 years ago. The 3.2-km-wide inner caldera was formed sometime between 1,500 and 800 years ago. Most historical eruptions, like this one in 1979, have originated from Bagiai cone within the 300-m-deep inner caldera.
An ash plume rises above the summit of Karkar volcano in 1979. There are two nested summit calderas at the summit of the forested volcano resulting in a broad, low profile. The 5.5-km-wide outer caldera was formed during one or more eruptions, the last of which occurred 9,000 years ago. The 3.2-km-wide inner caldera was formed sometime between 1,500 and 800 years ago. Most historical eruptions, like this one in 1979, have originated from Bagiai cone within the 300-m-deep inner caldera. · 사진: Photo by Wally Johnson, 1979 (Australia Bureau of Mineral Resources). · Wikimedia Commons
화산 유형
성층화산
국가
Papua New Guinea
지역
Southwestern Pacific Volcanic Regions / Bismarck Volcanic Arc
해발
1839m
좌표
-4.647, 145.976
마지막 분화
1979년
판구조 환경
Subduction zone / Continental crust (> 25 km)
화산 지형
Composite
주요 암석
Andesite / Basaltic Andesite
지질학적 요약

Karkar is a 19 x 25 km forest-covered island that is truncated by two nested summit calderas. The 5.5 km outer caldera was formed during one or more eruptions, the last of which occurred 9,000 years ago. The steep-walled 300-m-deep, 3.2 km diameter, inner caldera was formed sometime between 1,500 and 800 years ago. Cones are present on the N and S flanks of this basaltic-to-andesitic volcano; a linear array of small cones extends from the northern rim of the outer caldera nearly to the coast. Recorded eruptions date back to 1643 from Bagiai, a pyroclastic cone constructed within the inner caldera, the floor of which is covered by young, mostly unvegetated andesitic lava flows.

Wikipedia 요약

영어 요약

Karkar Island is an oval-shaped volcanic island located in the Bismarck Sea, about 74 kilometres (46 mi) off the north coast of mainland Papua New Guinea in Madang Province, from which it is separated by the Isumrud Strait. The island is about 25 km (16 mi) in length and 19 km (12 mi) in width. In the centre is an active volcano with two nested calderas.

Wikipedia · CC BY-SA · 전체 기사 보기 →

분화 이력

요약 (VEI 시계열)
막대를 클릭하면 개별 분화가 표시됩니다
7140 BCE~6835 BCE · 1건 · 최고 VEI 41037 BCE~732 BCE · 1건 · 최고 VEI ?488~793 · 2건 · 최고 VEI 4793~1099 · 1건 · 최고 VEI ?1404~1709 · 1건 · 최고 VEI 31709~2014 · 13건 · 최고 VEI 37140 BCE5004 BCE2563 BCE427 BCE1709

상세 타임라인

  1. 2014년VEI 1관측 기록
    2014-03-26 ~ 2014-03-27
    Uncertain
  2. 2013년VEI 3관측 기록
    2013-01-29 ~ 2013-03-15
    Bagiai cone
  3. 2012년VEI 3관측 기록
    2012-02-01 ~ 2012-02-01
    Unknown
  4. 2010년VEI 1관측 기록
    2010-02-25 ~ 2010-02-26
    Uncertain
  5. 2009년VEI ?지질학적 추정
    2009-05-01 ~ 진행 중
  6. 1980년VEI 1지질학적 추정
    1980-01-07 ~ 1980-01-17
  7. 1979년VEI 2관측 기록
    1979-01-12 ~ 1979-08-09
    SE foot of Bagiai
  8. 1974년VEI 2관측 기록
    1974-02-14 ~ 1974-08-08
    Bagiai
  9. 1974년VEI 2관측 기록
    1974-12-30 ~ 1975-06-26
    Bagiai
  10. 1962년VEI 2지질학적 추정
    1962-07-02 ~ 진행 중
    Ulumam
  11. 1895년VEI 2관측 기록
    1895-06-17 ~ 1895-08
  12. 1885년VEI 2관측 기록
    1885 ~ 진행 중
  13. 1830년VEI ?지질학적 추정
    1830 ~ 진행 중
  14. 1643년VEI 3관측 기록
    1643-04-20 ~ 진행 중
  15. 1070년 (±200년)VEI ?지질학적 추정
    1070 ~ 진행 중
    South flank (Patilo Cone)
  16. 730년VEI 4지질학적 추정
    730 ~ 진행 중
  17. 520년 (±100년)VEI 4지질학적 추정
    520 ~ 진행 중
  18. 기원전 870년 (±75년)VEI ?지질학적 추정
    BCE 870 ~ 진행 중
  19. 기원전 7140년 (±150년)VEI 4지질학적 추정
    BCE 7140 ~ 진행 중

외부 링크

⚠ 참고용 정보입니다. 재난 대응에 사용하지 마세요.