Alaska’s Mount Spurr is about to erupt. Be ready. That’s the current message from the Alaska Volcano Observatory. Continued unrest at the volcano roughly 75 miles west of Anchorage within the ...

Scientists worry that recent activity seen on a satellite at a volcano near a major U.S. city could spell disaster for ...

Mount Shasta, a steep-sided Cascade Range stratovolcano in Northern California, looms above Little Glass Mountain, a thick obsidian flow erupted from the Medicine Lake shield volcano about 1,000 years ...

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 ...