Grimsvotn volcano, Vatnajokull Ice Cap, Iceland
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Grimsvotn volcano, Vatnajokull Ice Cap, Iceland

by Ragnar Sigurdsson (arctic-images.com), Iceland

Grimsvotn a sub-glacial volcano situated near the center of the Vatnajokull ice cap is one of Iceland's most active volcanoes. It has a complex of calderas and a sub-glacial caldera lake sustained by geothermal heat. The last erupted was 2004. Higher resolution images available from rth@arctic-images.com (there is a licensing fee depending on the use).