Glaciers


Iceland Interior
 Geology


Kistufell
Gaesavotn Route

 


BARDARBUNGA
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History of volcanism



GRIMSVOTN

 

Bardarbunga is a large central volcano containing a large caldera (60 km²), which is close to 700 m deep.  In 1973 a satellite picture revealed vaguely the shape of the caldera and a consequent research confirmed the contours of the landscape under the ice shield.  Earthquakes are frequent in the area.  The volcanic history of the central volcano is still unknown, but a few eruptions in its vicinity during Holocene and historical times are known.

In 1972 a 415 m long ice core showed about 30 layers of tephra from the middle of the 17th century up to that date and further research is going to reduce the number of the secrets of this volcanic system.

Vatnajokull





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