Disclaimer: I'm no Danish teaching expert, I just happen to be an Icelander who was forced to learn Danish as my second language - and although I always got very good grades in Danish, I was never good in Danish: can't speak it, can't understand a Dane - I can maybe read it a little bit...
University of Utah geology and geophysics professor Fan-Chi Lin said the blob-shaped lower magma reservoir in Earth's lower crust is located 12 to 28 miles (20-45 km) under Yellowstone, with a volume of 11,500 cubic miles (46,000 cubic km), or 11.2 times the volume of Arizona's Grand Canyon.
In Yellowstone, some 400 miles beneath the Earthâs surface is a magma âhotspotâ which rises to 30 miles underground before spreading out over an area of 300 miles across. Atop this, but still beneath the surface, sits the slumbering volcano. July 22, 1980: Mount St Helens in Washington erupts.