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Ahyi

Estratovolcán · United States · 55 m (submarino)

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. · Foto: Image courtesy of Susan Merle (Oregon State University/NOAA Vents Program).
Tipo
Estratovolcán
País
United States
Región
Northwestern Pacific Volcanic Regions / Mariana Volcanic Arc
Altitud
55 m (submarino)
Coordenadas
20.437, 145.030
Última erupción
2026
Contexto tectónico
Subduction zone / Crustal thickness unknown
Forma volcánica
Composite
Roca principal
Andesite / Basaltic Andesite
Resumen geológico

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.

Resumen de Wikipedia

Resumen en inglés

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 · Leer artículo completo →

Historial de erupciones

Resumen (VEI en el tiempo)
Haga clic en una barra para ver erupciones individuales
1934~1943 · 1 erupciones · VEI máx. 11961~1970 · 2 erupciones · VEI máx. 01970~1980 · 1 erupciones · VEI máx. 01980~1989 · 1 erupciones · VEI máx. 01989~1998 · 2 erupciones · VEI máx. 01998~2007 · 1 erupciones · VEI máx. 02007~2016 · 1 erupciones · VEI máx. 22016~2025 · 4 erupciones · VEI máx. 119341952198019982016

Línea de tiempo detallada

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

Enlaces externos

⚠ Solo como referencia. No apto para respuesta ante emergencias.