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Monowai Seamount

Monowai

성층화산 · New Zealand · 132m (해저)

Map view shows Monowai submarine volcano at the lower left, with subsidiary cones on its N flank. A large submarine caldera lies to the NE at the top-right. The contour interval is 100 m and the resolution of the bathymetry data is 25 m. The proprietary bathymetry data were obtained by scientists of the New Zealand National Institute of Water and Atmospheric Research (NIWA) during a 2005 New Zealand-American NOAA Ocean Explorer research expedition to the Kermadec-Tonga Arc.
Map view shows Monowai submarine volcano at the lower left, with subsidiary cones on its N flank. A large submarine caldera lies to the NE at the top-right. The contour interval is 100 m and the resolution of the bathymetry data is 25 m. The proprietary bathymetry data were obtained by scientists of the New Zealand National Institute of Water and Atmospheric Research (NIWA) during a 2005 New Zealand-American NOAA Ocean Explorer research expedition to the Kermadec-Tonga Arc. · 사진: Image courtesy of Ian Wright, 2005 (NIWA; http://oceanexplorer.noaa.gov/explorations/05fire). · Wikimedia Commons
화산 유형
성층화산
국가
New Zealand
지역
Tonga-Kermadec Volcanic Regions / Northern Kermadec Volcanic Arc
해발
132m (해저)
좌표
-25.887, -177.188
마지막 분화
2014년
판구조 환경
Subduction zone / Oceanic crust (< 15 km)
화산 지형
Composite
주요 암석
Basalt / Picro-Basalt
지질학적 요약

Monowai, also known as Orion seamount, is a basaltic stratovolcano that rises from a depth of about 1,500 to within 100 m of the ocean surface about halfway between the Kermadec and Tonga island groups, at the southern end of the Tonga Ridge. Small cones occur on the N and W flanks, and an 8.5 x 11 km submarine caldera with a depth of more than 1,500 m lies to the NNE. Numerous eruptions have been identified using submarine acoustic signals since it was first recognized as a volcano in 1977. A shoal that had been reported in 1944 may have been a pumice raft or water disturbance due to degassing. Surface observations have included water discoloration, vigorous gas bubbling, and areas of upwelling water, sometimes accompanied by rumbling noises. It was named for one of the New Zealand Navy bathymetric survey ships that documented its morphology.

Wikipedia 요약

영어 요약

Monowai Seamount is a volcanic seamount to the north of New Zealand. It is formed by a large caldera and a volcanic cone just south-southeast from the caldera. The volcanic cone rises to depths of up to 100 metres (330 ft) but its depth varies with ongoing volcanic activity, including sector collapses and the growth of lava domes. The seamount and its volcanism were discovered after 1877, but only in 1980 was it named "Monowai" after a research ship of the same name.

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분화 이력

요약 (VEI 시계열)
막대를 클릭하면 개별 분화가 표시됩니다
1944~1951 · 1건 · 최고 VEI 01973~1980 · 4건 · 최고 VEI 11980~1987 · 3건 · 최고 VEI 01987~1994 · 2건 · 최고 VEI 01994~2002 · 5건 · 최고 VEI 02002~2009 · 6건 · 최고 VEI 02009~2016 · 6건 · 최고 VEI 119441958198019942009

상세 타임라인

  1. 2016년VEI 0지질학적 추정
    2016-11-11 ~ 2016-11-12
  2. 2014년VEI 1관측 기록
    2014-01-01 ~ 2014-01-01
    Summit
  3. 2014년VEI 0관측 기록
    2014-10-16 ~ 2014-11-05
    Submarine
  4. 2012년VEI 0관측 기록
    2012-08-03 ~ 2012-08-19
    Submarine
  5. 2011년VEI 0관측 기록
    2011-05-17 ~ 2011-05-22
    Summit Crater
  6. 2009년VEI 0관측 기록
    2009-05-04 ~ 2009-12-16
  7. 2008년VEI 0관측 기록
    2008-02-08 ~ 2008-02-08
  8. 2006년VEI 0관측 기록
    2006-12-12 ~ 2007-11-04
  9. 2005년VEI 0관측 기록
    2005-03-02 ~ 2006-06-27
  10. 2003년VEI 0관측 기록
    2003-04-10 ~ 2004-09-16
  11. 2002년VEI 0관측 기록
    2002-05-24 ~ 2002-05-24
  12. 2002년VEI 0관측 기록
    2002-11-01 ~ 2002-11-24
  13. 1999년VEI 0관측 기록
    1999-06-06 ~ 1999-06-11
  14. 1997년VEI 0관측 기록
    1997-04-18 ~ 1997-04-21
  15. 1997년VEI 0관측 기록
    1997-12-15 ~ 1998-02-04
  16. 1996년VEI 0관측 기록
    1996-09-20 ~ 1996-09-22
  17. 1995년VEI 0관측 기록
    1995-11-27 ~ 1995-11-30
  18. 1990년VEI 0관측 기록
    1990-05-30 ~ 1991-03-25
  19. 1988년VEI 0관측 기록
    1988-09-08 ~ 1988-09-08
  20. 1986년VEI 0관측 기록
    1986-06-16 ~ 1986-06-16
  21. 1982년VEI 0관측 기록
    1982-05-16 ~ 1982-05-16
  22. 1980년VEI 0관측 기록
    1980-01-16 ~ 1980-01-16
  23. 1979년VEI 1관측 기록
    1979-02-16 ~ 1979-04-19
  24. 1978년VEI 0관측 기록
    1978-02-16 ~ 1978-07-16
  25. 1977년VEI 0관측 기록
    1977-04-16 ~ 1977-04-16
  26. 1977년VEI 0관측 기록
    1977-10-17 ~ 1977-10-27
  27. 1944년VEI 0지질학적 추정
    1944 ~ 진행 중

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