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Minami-Hiyoshi Seamount

Minami-Hiyoshi

Estratovolcán · Japan · 107 m (submarino)

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. · Foto: Image courtesy of HOD Japan Coast Guard (http://www1.kaiho.mlit.go.jp/jhd-E). · Wikimedia Commons
Tipo
Estratovolcán
País
Japan
Región
Northwestern Pacific Volcanic Regions / Mariana Volcanic Arc
Altitud
107 m (submarino)
Coordenadas
23.500, 141.935
Última erupción
1975
Contexto tectónico
Subduction zone / Crustal thickness unknown
Forma volcánica
Composite
Roca principal
Trachyandesite / Basaltic Trachyandesite
Resumen geológico

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.

Resumen de Wikipedia

Resumen en inglés

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

Wikipedia · CC BY-SA · Leer artículo completo →

Historial de erupciones

Resumen (VEI en el tiempo)
Haga clic en una barra para ver erupciones individuales
1975~1977 · 3 erupciones · VEI máx. 01977~1979 · 1 erupciones · VEI máx. 01992~1994 · 1 erupciones · VEI máx. 01994~1996 · 1 erupciones · VEI máx. 019751979198619901994

Línea de tiempo detallada

  1. 1996VEI 0Estimación geológica
    1996-01-11 – 1996-01-12
  2. 1992VEI 0Estimación geológica
    1992-02-12 – 1992-03-04
  3. 1978VEI 0Estimación geológica
    1978-01-26 – 1978-03-24
  4. 1976VEI 0Estimación geológica
    1976-02-16 – En curso
  5. 1976VEI 0Estimación geológica
    1976-12-20 – 1977-03-28
    Hiyoshi-Okinoba (also 23.48 N 141.67 E)
  6. 1975VEI 0Observado
    1975-08-25 – En curso
    23.50 N 141.92 E

Enlaces externos

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