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Ahyi

성층화산 · United States · 55m (해저)

Ahyi submarine volcano is seen in a bathymetric view looking from the NE with 2x vertical exaggeration. It rises to within about 150 m of the sea surface about 18 km SE of the island of Farallon de Pajaros (Uracas) in the northern Marianas. Water discoloration has been observed over the volcano and an explosive eruption was seismically detected in April 2001.
Ahyi submarine volcano is seen in a bathymetric view looking from the NE with 2x vertical exaggeration. It rises to within about 150 m of the sea surface about 18 km SE of the island of Farallon de Pajaros (Uracas) in the northern Marianas. Water discoloration has been observed over the volcano and an explosive eruption was seismically detected in April 2001. · 사진: Image courtesy of Susan Merle (Oregon State University/NOAA Vents Program).
화산 유형
성층화산
국가
United States
지역
Northwestern Pacific Volcanic Regions / Mariana Volcanic Arc
해발
55m (해저)
좌표
20.437, 145.030
마지막 분화
2026년
판구조 환경
Subduction zone / Crustal thickness unknown
화산 지형
Composite
주요 암석
Andesite / Basaltic Andesite
지질학적 요약

Ahyi seamount is a large conical submarine volcano ~18 km SE of the island of Farallon de Pajaros in the northern Marianas. Water discoloration has been observed there, and in 1979 the crew of a fishing boat felt shocks over the summit area, followed by upwelling of sulfur-bearing water. On 24-25 April 2001 an explosive eruption was detected seismically by a station on Rangiroa Atoll, Tuamotu Archipelago. The event was well constrained (+/- 15 km) at a location near the southern base of Ahyi. An eruption in April-May 2014 was detected by NOAA divers, hydroacoustic sensors, and seismic stations.

Wikipedia 요약

영어 요약

Ahyi Seamount is an active shallow submarine volcano in the Northern Mariana Islands, in the Northwestern Pacific Ocean. It has erupted 5 times since the year 2000: in 2001, 2014, 2022–23, and twice in 2024. Since 2009, it has been a part of Marianas Trench Marine National Monument of the United States.

Wikipedia · CC BY-SA · 전체 기사 보기 →

분화 이력

요약 (VEI 시계열)
막대를 클릭하면 개별 분화가 표시됩니다
1934~1943 · 1건 · 최고 VEI 11961~1970 · 2건 · 최고 VEI 01970~1980 · 1건 · 최고 VEI 01980~1989 · 1건 · 최고 VEI 01989~1998 · 2건 · 최고 VEI 01998~2007 · 1건 · 최고 VEI 02007~2016 · 1건 · 최고 VEI 22016~2025 · 4건 · 최고 VEI 119341952198019982016

상세 타임라인

  1. 2025년VEI ?관측 기록
    2025-10-20 ~ 2026-01-09
  2. 2024년VEI 0관측 기록
    2024-01-01 ~ 2024-03-27
  3. 2024년VEI 0관측 기록
    2024-08-05 ~ 2025-05-28
  4. 2022년VEI 1관측 기록
    2022-11-18 ~ 2023-06-11
  5. 2014년VEI 2관측 기록
    2014-04-24 ~ 2014-05-17
    Summit crater and SE slope
  6. 2001년VEI 0관측 기록
    2001-04-24 ~ 2001-04-25
    S of Ahyi (20.34 N, 145.02 E)
  7. 1994년VEI 0관측 기록
    1994-04-23 ~ 진행 중
  8. 1989년VEI 0관측 기록
    1989-09-21 ~ 1989-12-27
    SW of Ahyi (~20.3 N, 144.9 E)
  9. 1985년VEI 0관측 기록
    1985-08-02 ~ 1985-09-05
    SW of Ahyi
  10. 1979년VEI 0관측 기록
    1979-11-15 ~ 1979-11-15
    Near the Ahyi summit
  11. 1969년VEI 0관측 기록
    1969-03-11 ~ 1969-03-13
    S of Ahyi (20.24 N, 145.02 E)
  12. 1967년VEI 0관측 기록
    1967-03-27 ~ 1967-04-10
    SW of Farallon de Pájaros
  13. 1934년VEI 1관측 기록
    1934-07-15 ~ 진행 중
    Vicinity of Farallon de Pájaros

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