Grímsvötn Ash Plume

Grímsvötn Ash PlumeGrímsvötn, an ice-capped volcano in the south of Iceland is currently erupting.  The ice cap is quite extensive and thick, so unless there are unknown sub-surface fissures, extensive local flooding is unlikely to result from the eruption.The volcano is likely to melt only the ice immediately over and adjacent to the caldera.  Melt water intrusion into magma can increase the production of tephra, as happened with last year's eruption of Eyjafjallajökull.  However, the ice cap of Grímsvötn is so thick that the erupting volcano will probably do no more than melt a hole through the icecap.read more

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