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Grabrok Crater

Grabrok
Grabrok

Grabrok (Grábrók) is a volcanic crater in the west of Iceland. Formed about 3,400 years ago, the crater is the largest of the three craters within a single volcanic fissure. The crack is only about 7 kilometers long.

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About the volcano

Grábrók

During the last eruption, lava blocked the Nordura River and dragged it eastward up the valley. Lava, known as Grabrocarhrawn, also blocked the valley in which Lake Hredavatn is now located.

Grábrók

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