Bok
05-30-2012, 07:18 PM
Huge underground magma chambers appear and erupt within just several hundred years
More... (http://www.sciencenews.org/view/generic/id/341084/title/Supervolcanoes_evolve_superquickly)
More... (http://www.sciencenews.org/view/generic/id/341084/title/Supervolcanoes_evolve_superquickly)