Scientists monitoring an underwater volcano located 300 miles off the coast of Oregon predict that an eruption is likely ...

Every island in Hawaiʻi has its own personality, history and landscape. From beach sands of many colors to mountain peaks, ...

The classic shield volcano with its gently sloping sides first emerged from the sea roughly 280,000 years ago. Its expansive surface covers an area slightly smaller than the island of Oʻahu.

Mars is known for the most magnificent volcanoes in our solar system. The largest volcano in the solar system, Olympus Mons, is found on Mars. Olympus Mons is a shield volcano, like those found in ...

Shield volcanoes are island-building. They can be violent and eject tephra but it is generally on a smaller scale near the crater or fissures. All volcanoes have steam and invisible, poisonous gasses.

The classic shield volcano with its gently sloping sides first emerged from the sea roughly 280,000 years ago. Its expansive surface covers an area slightly smaller than the island of Oʻahu.

An underwater volcano in the Pacific Northwest is expected to erupt sometime this year for the first time in 11 years — and it could stir up lots of activity for marine life in the area. The ...

Researchers say the area around the volcano is also experiencing more seismic activity. In June, scientists recorded over 2,000 earthquakes in a single day near the volcano.