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 ...
Dozens of mini earthquakes have struck near a 11,000-foot-tall volcano in Alaska that experts fear is 'moving closer to an eruption.' The Alaska Volcano Observatory (AVO) has detected 55 earthquakes ...
The Palisades cliffs west of New York City rear up from the Hudson River like the spine of some ancient beast—and that impression is not far off. Their basalt backbone is a remnant of an immense lava ...