The Axial Seamount, an underwater volcano located about 300 miles off the coast of Oregon, is displaying behavior that ...

Pseudocraters or rootless cones are peculiar volcanic formations with an explosive origin. They do not form from magma coming from deep underground. They are caused by lava covering a water-rich layer ...

“Fortunately, it's not dangerous,” he said. “It's very, very deep, and these deep-water volcanoes don't tend to have huge effects.” By contrast, an eruption from a shallow underwater ...

An curved arrow pointing right. The To-Sua Ocean Trench is a swimming hole in a volcano's crater. People from all over the world travel to the Samoan island of Upolu to swim in the crystal clear ...

An eruption of a submarine volcano called Funka Asane in the Ogasawara island chain was detected on March 27, prompting a warning for ash and rocks as well as floating pumice to be issued.