Blábjörg in Berufjörður

By the sea, on the north side of Berufjordur there is an interesting natural phenomenon. A short distance east of the farm Fagrihvammur, a peculiar cliff hammer rises and it is unlike any other rock in the area, both in colour and texture. The rock hammer is called Blábjörg (Blue Cliffs), and it's got a blue tinge.

This rock is made of ignimbrite, approximately 9 million years old. The rock hammer is a testament to a spectacular event in Iceland's geological history; iignimbrite is formed by a spike in heavy explosive eruptions. When the eruption becomes heavier than the atmosphere, it collapses, so there will be a spike in volcanic eruptions, as the fiery spike whips at an alarming rate down the slopes of volcanoes. Is the speed such that there is no man's chance to get away from such a thing.