An ash plume rises from a new crater near the southern margin of Grímsvötn caldera in November 2004. Grímsvötn lies largely beneath the vast Vatnajökull icecap and the eruption melted its way through ice about 200 m thick. The plume extends towards the north due to the wind direction, coating the surface of the glacier in dark ash.

Photo by Freysteinn Sigmundsson, 2004 (Nordic Volcanological Center).

This image is made available under the Creative Commons BY-NC 4.0 license terms.

Keywords: ash plume | ash | plume | eruption | explosive eruption

Grímsvötn