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Vestmannaeyjar

Fisura volcánica · Iceland · 283 m

The island of Heimaey, about 10 km off the south coast of Iceland, is part of the Vestmannaeyjar volcanic system, which comprises numerous islands and submarine vents. Heimaey probably formed in the Holocene, through numerous eruptions. Here, an ash-laden eruption plume rises above a volcanic cone behind the town of Vestmannaeyjar in 1973. The water pumping operation in the foreground was designed to cool the front of an advancing lava flow that threatened the town and its harbor.
The island of Heimaey, about 10 km off the south coast of Iceland, is part of the Vestmannaeyjar volcanic system, which comprises numerous islands and submarine vents. Heimaey probably formed in the Holocene, through numerous eruptions. Here, an ash-laden eruption plume rises above a volcanic cone behind the town of Vestmannaeyjar in 1973. The water pumping operation in the foreground was designed to cool the front of an advancing lava flow that threatened the town and its harbor. · Foto: Photo by Jack Lockwood, 1973 (U.S. Geological Survey). · Wikimedia Commons
Tipo
Fisura volcánica
País
Iceland
Región
Atlantic Ocean Volcanic Regions / Iceland Neovolcanic Rift Volcanic Province
Altitud
283 m
Coordenadas
63.416, -20.266
Última erupción
1973
Contexto tectónico
Rift zone / Oceanic crust (< 15 km)
Forma volcánica
Cluster
Roca principal
Basalt / Picro-Basalt
Resumen geológico

The mostly submarine Vestmannaeyjar volcanic system is the southernmost and youngest volcanic center of the Eastern Volcanic Zone that cuts across E-central Iceland. It consists of a roughly 30 x 40 km group of basaltic islands and submarine cones occupying a shallow shelf off the S coast of Iceland, and was the site of two of Iceland's most noted 20th-century eruptions. The island of Surtsey grew from the ocean floor during 1963-67. The island of Heimaey, 20 km to the NE, was the site of eruptions in 1973, during which lava flows partially overran the town of Vestmannaeyjar and threatened its harbor. Twenty-two postglacial eruption sites are known, and all ten subaerial vents on Heimaey are of Holocene age.

Resumen de Wikipedia

El Jólnir es un volcán submarino en el sur de Islandia, cerca de la isla de Surtsey Está 41 metros por debajo del mar. Pertenece a la región de Suðurland. Se formó durante una erupción que duró diez meses y produjo una isla que en pocas semanas se sumergió por la erosión marina. Así, se formó un monte submarino.

Wikipedia · CC BY-SA · Leer artículo completo →

Historial de erupciones

Resumen (VEI en el tiempo)
Haga clic en una barra para ver erupciones individuales
8050 BCE~7716 BCE · 1 erupciones · VEI máx. 47716 BCE~7382 BCE · 1 erupciones · VEI máx. 36379 BCE~6045 BCE · 1 erupciones · VEI máx. ?4709 BCE~4375 BCE · 1 erupciones · VEI máx. ?4375 BCE~4041 BCE · 1 erupciones · VEI máx. 34041 BCE~3707 BCE · 1 erupciones · VEI máx. ?1305~1639 · 1 erupciones · VEI máx. ?1639~1973 · 3 erupciones · VEI máx. 38050 BCE5711 BCE3038 BCE700 BCE1639

Línea de tiempo detallada

  1. 1973VEI 3Observado
    1973-01-23 – 1973-06-28
    Heimaey (Eldfell)
  2. 1963VEI 3Observado
    1963-11-08 – 1967-06-05
    Surtsey
  3. 1896VEI ?Observado
    1896-09 – En curso
    South or SE of Hellisey
  4. 1637VEI ?Observado
    1637-10 – 1638-02-28
    SW of Heimaey ?
  5. 3950 a. C. (±300 años)VEI ?Estimación geológica
    BCE 3950 – En curso
    Heimaey (Helgafell)
  6. 4270 a. C. (±200 años)VEI 3Estimación geológica
    BCE 4270 – En curso
    Heimaey (Saefell tuff cone)
  7. 4550 a. C. (±500 años)VEI ?Estimación geológica
    BCE 4550 – En curso
    Heimaey (Stórhöfdi tuff cone)
  8. 6050 a. C.VEI ?Estimación geológica
    BCE 6050 – En curso
    Alsey, Brandur, Sudurey, Hellisey
  9. 7550 a. C.VEI 3Estimación geológica
    BCE 7550 – En curso
    NW Heimaey (Nordurklettar)
  10. 8050 a. C.VEI 4Estimación geológica
    BCE 8050 – En curso
    NW Heimaey (Háin tuff ring)

Enlaces externos

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