A recent study has revealed that dormant volcanoes in the Cascade Range still contain significant amounts of magma beneath ...

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

Below Mount Jefferson and McKenzie Pass is a massive storehouse of water three times the size of Lake Mead, say Oregon researchers.

Though the volcano’s magma chambers could hold enough material for a caldera-forming event, none of them are likely to erupt soon.

Though the volcano lives quietly under the surface of the National Park, its geothermal activity results in numerous hot ...