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 ...

I n its latest eruption event, Hawaii’s Kīlauea volcano sent a fountain of lava 540 meters (1,770 feet) up into the sky in what is a new record for this eruption, which began in December 2024. Some of ...

Scientists noted the eruption stayed mostly contained within the volcano's usual zone, but the long flow of the eruption, ...

Olympus Mons, a shield volcano on Mars, is the largest volcano in the solar system, measuring approximately 370 miles in diameter and 26 kilometers in height. The formation of Olympus Mons and three ...

(CNN) — Here's some background information about volcanoes, mountains that open downward to a reservoir of molten rock. Facts: More than 80% of the Earth's surface, both above and below sea level, is ...

A volcano is an opening in the Earth's crust that allows molten rock, gases, and debris to escape from below the surface. The ...