A team of scientists put together a global database of submarine mud volcanoes. Orders of magnitude more are still bubbling, ...

Scientists have made a surprising discovery in the Pacific Ocean about 1,000 miles east of Japan: Earth's largest volcano. Tamu Massif is a monster at 280 miles by 400 miles, or roughly the size ...

The volcano is completely submerged, and Sager doesn’t believe that its peak ever rose above sea level over its 145-million-year lifetime. There is no danger of an eruption.

Hawai’i Volcanoes National Park, which calls Mauna Loa the largest active volcano in the world, has an elevation above the sea floor of about 33,500 feet – with about 19,700 feet of its total ...

Just this week, NASA announced that it had discovered one of the youngest, possibly the youngest major volcano on Mars to date. Arsia Mons – a gigantic, 110-kilometer-long (68-mile-long) caldera ...

The small, aptly named town of Volcano, Hawaii, population 2,500, is about 3 miles (4.83 kilometers) from the summit. Janet Coney is office manager of the Kilauea Lodge, an inn and restaurant.

The Pacific Northwest is home to a number of active volcanoes. ... Around 5600 B.C., an eruption 50 times the size of Mount St. Helens in 1980 leveled the mountain.

Scientists may have pinpointed a massive, oddly shaped volcano taller than Mount Everest on the surface of Mars — and it has been hiding in plain sight for decades, according to new research.

The largest single volcano found on Earth so far lay quietly hiding in the depths of the Pacific Ocean, about a thousand miles east of Japan, having been extinct for millions of years. Scientists ...

Scientists may have pinpointed a massive, oddly shaped volcano taller than Mount Everest on the surface of Mars — and it has been hiding in plain sight for decades, according to new research ...