Volcano Watch is a weekly article and activity update written by U.S. Geological Survey Hawaiian Volcano Observatory ...

Scientists say the 19-mile-wide bulge in the northern rim of a volcano's caldera in Yellowstone has stopped growing. The head ...

Yellowstone eruptions may be driven by shifts in Earth's crust, rather than a deep well of magma, study finds.

The magma reservoir of the largest volcanic eruption of the Holocene is refilling. This Kobe University insight on the Kikai caldera in Japan allows us to understand giant caldera volcanoes like ...

Add Yahoo as a preferred source to see more of our stories on Google. The Kilauea volcano erupted Monday morning on Hawaii's Big Island following increased earthquake activity beneath its summit, ...

This situation is heating up. One of the world’s most volatile volcanoes is silently refilling with molten rock, sparking fears that this caldera could be getting ready to unleash a torrent of lava, ...

A major Yellowstone eruption likely won’t happen for thousands, and potentially millions, of years. Scientists say that the ...

We are used to seeing eruptions from the summit region of Kilauea contained to the region that is referred to as Halema‘uma‘u ...

The Kilauea volcano erupted Monday morning on Hawaii's Big Island following increased earthquake activity beneath its summit, according to the U.S. Geological Survey. The volcano is located along the ...

Volcano Watch is a weekly article and activity update written by US Geological Survey Hawaiian Volcano Observatory scientists ...