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Minami-Hiyoshi Seamount

Minami-Hiyoshi

성층화산 · Japan · 107m (해저)

Minami-Hiyoshi (center) is seen in this Japan Coast Guard bathymetric image with N to the right. Periodic water discoloration and water-spouting have been reported over this submarine volcano since 1975 along with audible detonations and an explosion. Minami-Hiyoshi lies near the SE end of a coalescing chain of seamounts. Naka-Hiyoshi (upper right) lies to the NW and Ko-Hiyoshi seamount (left) to the SSE.
Minami-Hiyoshi (center) is seen in this Japan Coast Guard bathymetric image with N to the right. Periodic water discoloration and water-spouting have been reported over this submarine volcano since 1975 along with audible detonations and an explosion. Minami-Hiyoshi lies near the SE end of a coalescing chain of seamounts. Naka-Hiyoshi (upper right) lies to the NW and Ko-Hiyoshi seamount (left) to the SSE. · 사진: Image courtesy of HOD Japan Coast Guard (http://www1.kaiho.mlit.go.jp/jhd-E). · Wikimedia Commons
화산 유형
성층화산
국가
Japan
지역
Northwestern Pacific Volcanic Regions / Mariana Volcanic Arc
해발
107m (해저)
좌표
23.500, 141.935
마지막 분화
1975년
판구조 환경
Subduction zone / Crustal thickness unknown
화산 지형
Composite
주요 암석
Trachyandesite / Basaltic Trachyandesite
지질학적 요약

Periodic water discoloration and water-spouting have been reported over the Minami-Hiyoshi submarine volcano since 1975, when detonation sounds and an explosion were also reported. It lies near the SE end of a coalescing chain of youthful seamounts, and is the only vent with recorded activity. The reported depth of the summit of the trachyandesitic volcano has varied between 274 and 30 m. The morphologically youthful seamounts Kita-Hiyoshi and Naka-Hiyoshi lie to the NW, and Ko-Hiyoshi to the SE.

Wikipedia 요약

영어 요약

The Minami-Hiyoshi Seamount is an active seamount in the Bonin Islands of Japan.

Wikipedia · CC BY-SA · 전체 기사 보기 →

분화 이력

요약 (VEI 시계열)
막대를 클릭하면 개별 분화가 표시됩니다
1975~1977 · 3건 · 최고 VEI 01977~1979 · 1건 · 최고 VEI 01992~1994 · 1건 · 최고 VEI 01994~1996 · 1건 · 최고 VEI 019751979198619901994

상세 타임라인

  1. 1996년VEI 0지질학적 추정
    1996-01-11 ~ 1996-01-12
  2. 1992년VEI 0지질학적 추정
    1992-02-12 ~ 1992-03-04
  3. 1978년VEI 0지질학적 추정
    1978-01-26 ~ 1978-03-24
  4. 1976년VEI 0지질학적 추정
    1976-02-16 ~ 진행 중
  5. 1976년VEI 0지질학적 추정
    1976-12-20 ~ 1977-03-28
    Hiyoshi-Okinoba (also 23.48 N 141.67 E)
  6. 1975년VEI 0관측 기록
    1975-08-25 ~ 진행 중
    23.50 N 141.92 E

외부 링크

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