Subglacial Volcano - John Seach

A subglacial volcano is a volcanic form produced by eruptions beneath a glacier
or beneath the surface of a lake within a glacier.

Examples of Subglacial Volcanoes
Katla (Iceland)
Loki-Fogrufjoll (Iceland)
Volcan Viedma (Chile)
 

Subglacial Eruptions
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Copyright John Seach