After an extended period of stable crust and relative inactivity, the now heavy crust starts to overturn and sink back into the liquid lake, causing very violent fountaining all along the perimeter of the lake and new rapid rifts creating new crust. (Photo: Tom Pfeiffer)
More on VolcanoDiscovery
Colors of Iceland
: Discover Iceland's fascinating geology and volcanic activity on this relaxed photo and geo tour!
Desert, Salt & Volcanoes
: One of our best volcano expeditions! Stay 3 full days / nights at the active lava lake of Erta Ale, explore the wonders of Dallol and the Danakil desert in northern Ethiopia. 14 days expedition during Nov-March, small groups, guided by geologist.