Yellowstone is what’s called a hotspot, where large areas of molten material stay in one place as the Earth’s tectonic plates move around. This type of magma is called “basaltic”, and it ...

That movement has now left one pool of molten material on the west of the caldera disconnected from any heat sources, which will likely allow it to cool. Meanwhile, the largest pool of near-surface ...

Yellowstone's magma system shows new activity, with the northeast sector possibly hosting future volcanic activity.

Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. This week's contribution is from Cathy Whitlock, Regents Professor ...