Scientists found the massive underwater mountain off Canada’s Pacific coast, rising 3,600 feet above the seafloor.

The Axial Seamount – located hundreds of miles off the coast of Oregon and nearly 5,000 feet below the Pacific Ocean’s waves – erupted in April 2015, spewing a mile’s worth of lava onto the sea floor.

Deep beneath the surface of the ocean lies an extreme marine ecosystem home to submarine volcanoes, an opening in the seafloor erupting with magma to form new crust. Void of light with an immense ...

Sasha Wagner, association professor at Rensselaer Polytechnic Institute, holds some of the “old” rocks formed when carbon solidified after an underwater eruption. She led a team that happened upon an ...

The Kavachi volcano is an active underwater volcano located near the Solomon Islands in the southwestern Pacific. Underwater, or submarine, volcanoes are found on the ocean floor. The Kavachi volcano ...

As part of a growing national effort -to understand seafloor hazards, scientists from the United States Geological Survey’s Volcano Science Center are working across agencies to investigate how ...

An underwater volcano off the coast of Oregon is gearing up for an eruption, according to volcanologists who are monitoring for activity. The Axial Seamount-- an underwater volcano located about 300 ...

In late January, something began to stir beneath the idyllic Greek islands of Santorini, Amorgos, and Anafi. These Aegean ...