Over 40,000 seamounts—undersea mountains that don't breach the ocean's surface—are scattered across the ocean floor. Some ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. A volcanic seamount that lies deep beneath the sea off Hawaii is ...

New research reveals that deep mantle plumes may be responsible for thousands of underwater mountains across the ocean floor.

Add Yahoo as a preferred source to see more of our stories on Google. A sonar image shows the newly discovered seamount. Ocean explorers mapping the seabed off the coast of Guatemala have discovered a ...

Although the Kama‘ehuakanaloa Seamount has been a little restless recently, new information about the undersea volcano is still sparse. The seamount’s most recent eruption was in 1996, and although ...

Siladitya Ray is a New Delhi-based Forbes news team reporter. The Axial Seamount, an underwater volcano located off the Pacific Northwest coast that last erupted in 2015 and spewed several miles of ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. A massive ...

Add Yahoo as a preferred source to see more of our stories on Google. A volcano eruption near Oregon is brewing — but don't panic about Axial Seamount. The undersea volcano has been attracting ...

Tom has a Master's degree in Journalism. His editorial work covers anything from archaeology and the environment to technology and culture. Tom has a Master's degree in Journalism. His editorial work ...

Scientists have long puzzled over what happens when seamounts—mountains and volcanoes on the seafloor—are pulled into subduction zones. Now, new research from The University of Texas at Austin shows ...

{Note: what is described here occurred Friday August 10. Publication was delayed as we waited for the go ahead to publish.} UPDATE August 13 6:15 PM EDT: Be sure to check out the NASA Earth ...