Beneath the ocean’s surface, something extraordinary is happening — a silent ridge is shaking over 1,000 times a day. But ...

An underwater volcano off the coast of Oregon is gearing up for an eruption, according to scientists who are monitoring for ...

Hundreds of miles off the coast of Oregon, Deb Kelley watched a pod of dolphins swim past the research vessel Atlantis as the sun set on the Pacific Ocean. But beneath the calm seas lurked a behemoth: ...

"NOAA’s Monterey Bay National Marine Sanctuary contains some amazing deep-sea features: many are familiar with the deep-sea ...

An "enormous" submerged mountain that rivals peaks in the Rockies has been mapped for the first time in a previously ...

The largest of the four seamounts recently discovered by Schmidt Ocean Institute experts is 1.5 miles high and covers about 280 square miles. Schmidt Ocean Institute image A team of scientists ...

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

Although the Kamaehuakanaloa Seamount has been a little restless recently, new information about the undersea volcano is still sparse. The volcano, formerly called Loihi Seamount, is about 22 miles ...

Past surveys of the area's wildlife have shown other endangered whale species, like the blue whale, but it's a rare treat to ...

(CNN) — A massive underwater mountain, otherwise known as a seamount, has been discovered on the floor of the Pacific Ocean off the coast of Guatemala. The seamount is most likely a remnant of an ...