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통가 · 복합화산

Curacoa volcano

Curacoa

화산 유형
복합화산
해발
33m (해저)
마지막 분화
1979년
A raft of floating pumice from a July 1973 submarine eruption behind the wake of a ship. This was the first report of an eruption from the Curacoa submarine volcano in the northern Tonga Islands. The pumice raft covered an area of more than 100 km2 and was encountered by a ship 200 km to the W nearly two weeks after the start of the eruption. Another eruption was observed in the same general area in 1979.
A raft of floating pumice from a July 1973 submarine eruption behind the wake of a ship. This was the first report of an eruption from the Curacoa submarine volcano in the northern Tonga Islands. The pumice raft covered an area of more than 100 km2 and was encountered by a ship 200 km to the W nearly two weeks after the start of the eruption. Another eruption was observed in the same general area in 1979. · 사진: Photo by the crew of the vessel "Port Nicholson," 1973 (courtesy of Tom Simkin, Smithsonian Institution).
화산 유형
복합화산
국가
통가
지역
통가·케르마덱 / Tofua Volcanic Arc
해발
33m (해저)
좌표
-15.620, -173.670
마지막 분화
1979년
판구조 환경
섭입대 / 해양 지각 (< 15 km)
화산 지형
복성화산체
주요 암석
데사이트
지질학적 요약

A submarine volcano south of Curacoa Reef at the northern end of the Tofua volcanic arc was first observed in eruption in 1973. Explosive eruptions, which produced large rafts of dacitic pumice, covering an area of more than 100 km2, were observed from the island of Tafahi, 27 km SSW. The eruption site was located about 6.5 km SW of Curacoa Reef. Multiple submarine vents are apparently located in this area; a second eruption was reported in 1979 from a location 13 km N of Tafahi.

분화 이력

2건 기록용어집
요약 (VEI 시계열)
막대를 클릭하면 개별 분화가 표시됩니다 · 화살표 키로 막대 이동, Enter로 열기
1973~1974 · 1건 · 최고 VEI 31978~1979 · 1건 · 최고 VEI 119731974197619771978

상세 타임라인

  1. 1979년VEI 1관측 기록
    1979-05-14 ~ 종료일 미상
    13 km north of Tafahi
  2. 1973년VEI 3관측 기록
    1973-07-11 ~ 1973-07-16
    6.4 km SW of Curacoa Reef

주변 화산

외부 링크

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