A Mount Rainier lahar could reach nearby towns in about 30 minutes, making volcanic mudflows a major Cascade Range hazard.

Dozens of people have died, hundreds are missing and many more homes were destroyed after separate volcanic eruptions in Hawaii and Guatemala that made headlines worldwide in recent months. And ...

In today's video, we're going to dive into the geography of volcanoes in the United States, the history of volcanic eruptions, why Mount Rainier is considered to be the country's most dangerous ...

Social media videos are stoking fears about a catastrophic eruption in central Oregon, but the science tells a different story.

Volcanoes are Earth’s geologic architects. They’ve created more than 80 percent of our planet’s surface, laying the foundation that has allowed life to thrive. Their explosive force crafts mountains ...