At the brand new "state-of-the-art" Lava Centre you will learn about the birth and growth of Iceland as one of the world’s largest volcanic islands. It has risen during millions of years from the submarine North Atlantic Ridge, through countless volcanic eruptions. They occur as a large mantle plume locally adds molten rock to the magma up-flow beneath the rifting segments that line this ridge. The spreading along the ridge results in the Eurasian and North American tectonic plates moving apart 20 kilometres every million years.