Grímsvötn

Deutsch: Bei den Grímsvötn handelt es sich um subglaziale Seen unter dem Vatnajökull in Island, unter denen sich der gleichnamige Zentralvulkan befindet. Zu diesem gehört ein ca. 70 km langes Vulkan- oder Spaltensystem, das auch die Lakikrater umfasst.

English: Grímsvötn is a subglacial lake under the ice cap of Vatnajökull in Iceland. The lake covers partially the caldera of the homonymos central volcano. The connected fissure system has a length of about 70 km and comprises among others the craters of Laki.

Français : Grímsvötn est un volcan central sous-glaciaire dans le Vatnajökull en Islande. Le lac du même nom couvre une partie de la caldeira du volcan central. Le système volcanique (de fissures) a une longueur d'à peu près 70 km et contient entre autres les cratères de Laki.

Satellite pictures

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  Ashplume from Grímsvötn in 2004
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  Grímsvötn eruption in 2004
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Grímsfjall

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  The mountain Grímsfall in 1972
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  The subglacial lakes Grímsvötn are located in the Grímsvötn caldera.
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  Grímsvötn with Grímsfjall

Volcanism of Grímsvötn

• In 1996, the Grímsvötn-Gjálp eruption caused a jökulhlaup which inundated the plain Skeiðarársandur and damaged the Hringvegur and some bridges.
  In 1996, the Grímsvötn-Gjálp eruption caused a jökulhlaup which inundated the plain Skeiðarársandur and damaged the Hringvegur and some bridges.
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  Skeiðarársandur from space
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  Hringvegur over Skeiðarársandur
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  Remnants of a damaged bridge
• The jökulhlaup
  The jökulhlaup

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  Satellite pictures of the Grímsvötn eruption in 2004
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  Ash plume from the 2011 eruption of Grímsvötn
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  Grímsvötn plume in May 2011
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  Ash on cars from the 2011 eruption

Laki

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                           The fissures of Laki which erupted in 1783/74 are part of the volcanic system of Grímsvötn.