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Formas submarinas · Fisura volcánica

Cleft Segment

Tipo
Fisura volcánica
Altitud
2140 m (submarino)
Última erupción
1986
These black smoker vents are located along the Cleft Segment, the southernmost segment of the Juan de Fuca Ridge. These sustained high-temperature vents were photographed along fissures that fed an older lava flow adjacent to a 1986 lava flow that was erupted during the second of two documented submarine eruptions in the 1980s. The 80-km-long Cleft Segment is located immediately north of the Blanco Fracture Zone about 500 km off the Oregon coast.
These black smoker vents are located along the Cleft Segment, the southernmost segment of the Juan de Fuca Ridge. These sustained high-temperature vents were photographed along fissures that fed an older lava flow adjacent to a 1986 lava flow that was erupted during the second of two documented submarine eruptions in the 1980s. The 80-km-long Cleft Segment is located immediately north of the Blanco Fracture Zone about 500 km off the Oregon coast. · Foto: Image courtesy of National Oceanic and Atmospheric Administration (http://www.pmel.noaa.gov/vents/home.html).
Tipo
Fisura volcánica
País
Formas submarinas
Región
Pacífico Oriental / Northeast Pacific Rifts Volcanic Province
Altitud
2140 m (submarino)
Coordenadas
44.830, -130.300
Última erupción
1986
Contexto tectónico
Zona de rift / Corteza oceánica (< 15 km)
Forma volcánica
Grupo volcánico
Roca principal
Basalto / Picrobasalto

Resumen geológico

Original en inglés

The Cleft Segment, the southernmost of the Juan de Fuca Ridge, lies immediately north of the Blanco Fracture Zone.

Extracto del Global Volcanism Program, Smithsonian Institution · Leer el resumen completo en el GVP →

Historial de erupciones

3 registradasGlosario

Resumen del registro

Erupciones confirmadas
3
Erupciones inciertas
0
Período del registro confirmado
270 a. C. – 1986
Mayor erupción confirmada
VEI 0 (1986, la más reciente de 3)
Erupciones confirmadas desde 1900
2
Resumen (VEI en el tiempo)
Haga clic en una barra para ver erupciones individuales · Usa las flechas para moverte entre barras y Enter para abrir
270 a. C.~82 a. C. · 1 erupciones · VEI máx. 01798~1986 · 2 erupciones · VEI máx. 0270 a. C.29485812341798

Línea de tiempo detallada

  1. 1986VEI 0Observado
    1986-08-16 – fin desconocido
    N Cleft Segment, S Juan de Fuca Ridge
  2. 1982VEI 0Observado
    1982-07-02 – fin desconocido
    N Cleft Segment, S Juan de Fuca Ridge
  3. 270 a. C.VEI 0Estimación geológica
    270 a. C. – fin desconocido
    S Cleft Segment, S Juan de Fuca Ridge

Volcanes cercanos

Enlaces externos

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