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Fonuafoʻou

Fonuafo'ou

성층화산 · Tonga · 17m (해저)

The active crater of Fonuafo'ou (formerly known as Falcon Island) through the SE breach and a plume that is dispersed to the NW by dominant SE Trade Winds. The ephemeral island in the central part of the Tonga Islands had been named after the British vessel H.M.S. Falcon, which reported the shoal in 1865. This volcano has been the site of eruptions on at least two occasions since the 19th century. By 1949 the island had eroded beneath sea level, but the summit of the volcano remains at shallow depths.
The active crater of Fonuafo'ou (formerly known as Falcon Island) through the SE breach and a plume that is dispersed to the NW by dominant SE Trade Winds. The ephemeral island in the central part of the Tonga Islands had been named after the British vessel H.M.S. Falcon, which reported the shoal in 1865. This volcano has been the site of eruptions on at least two occasions since the 19th century. By 1949 the island had eroded beneath sea level, but the summit of the volcano remains at shallow depths. · 사진: Photo by A. Thompson (published in Taylor and Ewart, 1997). · Wikimedia Commons
화산 유형
성층화산
국가
Tonga
지역
Tonga-Kermadec Volcanic Regions / Tofua Volcanic Arc
해발
17m (해저)
좌표
-20.320, -175.420
마지막 분화
1936년
판구조 환경
Subduction zone / Oceanic crust (< 15 km)
화산 지형
Composite
주요 암석
Andesite / Basaltic Andesite
지질학적 요약

The ephemeral Fonuafo'ou island in the central part of the Tonga Islands is also known as Falcon Island, named after the British vessel H.M.S. Falcon, which reported a shoal in 1865. Islands up to 6 km long were formed in 1885 and 1927 eruptions; in 1933 the island had a height of more than 145 m. Passing ships often reported "smoke" issuing from the site. The latest explosive activity was reported in 1936. By 1949 the island had eroded beneath sea level, but the summit remains at shallow depths.

Wikipedia 요약

영어 요약

Fonuafo‘ou, formerly known as Falcon Island, is a submarine volcano in the western part of the Ha'apai group in Tonga. The volcano has created an island several times throughout history.

Wikipedia · CC BY-SA · 전체 기사 보기 →

분화 이력

요약 (VEI 시계열)
막대를 클릭하면 개별 분화가 표시됩니다
1781~1797 · 1건 · 최고 VEI 01859~1874 · 1건 · 최고 VEI 01874~1890 · 2건 · 최고 VEI 31890~1905 · 1건 · 최고 VEI 01921~1936 · 4건 · 최고 VEI 217811812185918901921

상세 타임라인

  1. 1936년VEI 2관측 기록
    1936-06 ~ 진행 중
  2. 1933년VEI 2관측 기록
    1933-04 ~ 진행 중
  3. 1927년VEI 2관측 기록
    1927-10-04 ~ 1928-09
  4. 1921년VEI 0지질학적 추정
    1921-11 ~ 진행 중
  5. 1894년VEI 0지질학적 추정
    1894-12 ~ 진행 중
  6. 1885년VEI 3관측 기록
    1885-10-12 ~ 1886
  7. 1877년VEI 2관측 기록
    1877 ~ 진행 중
  8. 1865년VEI 0지질학적 추정
    1865 ~ 진행 중
  9. 1781년VEI 0지질학적 추정
    1781 ~ 진행 중

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