The Mount St. Helens eruption anniversary prompts investigation into the California earthquakes: eruption history, threat ...

Two massive tectonic plates (the Pacific and the Juan de Fuca plates) are constantly shifting, leading to a steady build-up ...

The Yellowstone Plateau Volcanic Field has some of the largest rhyolite lava flows on Earth. Have you ever wondered what ...

Axial Seamount, a mile-wide underwater volcano off the coast of Oregon, is showing signs of an imminent eruption. The volcano ...

Though perhaps not well known to the general public, Axial Seamount is considered a key window into Earth's geology. Axial is significant because it sits atop the Juan de Fuca Ridge, the region where ...

Axial Seamount, an underwater volcano 300 miles off Oregon’s coast, is showing strong signs of an impending eruption—the ...

The underwater volcano, Axial Seamount, off the coast of the Pacific Northwest is heading to eruption for the first time in a ...

Of the eight active volcanoes on the USGC watch list, three are relatively easy to explore — Long Valley, Mt. Lassen, and ...

Using advanced technology that analyzes tiny gas bubbles trapped in crystals, a team of scientists led by Cornell University ...

Using advanced technology that analyzes tiny gas bubbles trapped in crystal, a team of scientists has precisely mapped how magma storage evolves as Hawaiian volcanoes age.

"We suggest that the processes which formed the lunar maria several billion years ago are still present and active today." ...

A reappraisal of decades-old data suggests that strange circular formations on Venus could be volcanic “rings of fire” ...