Volcanoes inspire awe with spectacular eruptions and incandescent rivers of lava, but often their deadliest hazard is what quietly falls from the sky.

I visited all the major US national parks and ranked them based on factors like beauty and crowd size. My favorites include Grand Teton and Acadia.

While it doesn’t rival the famed “Porky’s Rising,” this prank roped in dozens of University of Alaska students.

Where are the most active volcanoes in the United States? From Hawaii’s fiery peaks to Alaska’s volcanic landscapes, discover ...

Scientists have identified early warning signs of a potential volcanic eruption at Mount Spurr, located in Alaska.

Earthquakes are among the most formidable natural disasters, striking with little warning and causing widespread devastation.

A volcano began erupting in southwestern Iceland on Tuesday, just hours after authorities evacuated a nearby community and the Blue Lagoon spa. Flames and smoke shot through the air as the ...

Related: Huge steam plume rises from Alaska's Mount Spurr as volcano edges closer to eruption Both Grindavík and the nearby Blue Lagoon spa — a popular tourist attraction — have been ...