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 ...

A volcano has erupted in Japan, sending plumes of lava and clouds of ash high into the sky. Sakurajima, a stratovolcano in southern Japan, began erupting on Wednesday evening and continued on Thursday ...

Mount Spurr has begun to stir after decades of silence. This 11,070-foot stratovolcano sits 81 miles west of Anchorage, Alaska. For years, it remained quiet-its snow-covered peak barely drawing ...

In this astronaut photo, an infamous Nicaraguan volcano coughs up toxic clouds of gas a few years after its first eruptions for more than a century. Momotombo is an active stratovolcano that sits on ...

Here’s what you’ll learn when you read this story: Taftan, a 13,000-foot-tall stratovolcano in southeastern Iran, is showing signs of life with a rapid uplifting of ground near the summit over the ...