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 ...

Alaska’s imposing Mount Spurr, a towering 11,000-foot volcano located just 80 miles west of Anchorage, is once again making its presence known—and this time, it may not go back to sleep quietly.

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 ...