Kenneth Sims and other research scientists recently discovered that mafic volcanism of Henrys Fork Caldera -- located in ...

Yellowstone is most famous for huge explosive eruptions that create large calderas. Outside Yellowstone Caldera, however, ...

Between these large eruptions, numerous lava flows and domes erupted within the calderas produced by these large eruptions. Although most eruptions at Yellowstone tend to be rhyolite in ...

Beneath Alaska’s breathtaking landscapes and pristine wilderness lies one of the most geologically active regions on the ...

A new study shows a volcanic eruption of Yellowstone may be even less likely than we thought: Scientists have discovered a ...

Scientists have studied Yellowstone National Park's magmatic system for years, but a new view of the magma chamber shows the long-dormant supervolcano is not at immediate risk of eruption.