Vatnajökull

With an area of 8,100 km², Vatnajökull is the largest ice cap in Europe by volume (3,100 km³) and the second largest (after Austfonna on Nordaustlandet, Norway) in area (not counting the still larger Severny Island ice cap of Novaya Zemlya, Russia, which may be regarded as located in the extreme northeast of Europe). On 7 June 2008, it became a part of the Vatnajökull National Park.

The average thickness of the ice is thus 400 m (1,300 ft), with a maximum thickness of 1,000 m (3,300 ft). Iceland's highest peak, Hvannadalshnúkur (2,109.6 m (6,921 ft)), is located in the southern periphery of Vatnajökull, near Skaftafell National Park.


Under the ice cap, as under many of the glaciers of Iceland, there are several volcanoes. The volcanic lakes, Grímsvötn for example, were the sources of a large jökulhlaup (glacial lake outburst flood) in 1996. There was also a considerable but short-time eruption of the volcano under these lakes at the beginning of November 2004. In May 21, 2011 a volcanic eruption started í Grímsvötn in Vatnajökull National Park at around 7 p.m. The plume reached as high as 20 kilometers. During the last ice age, numerous volcanic eruptions occurred under Vatnajökull, creating many subglacial eruptions.