A magnitude 7.8 earthquake struck off the Pacific coast of Russia in the same area where an even bigger quake hit earlier this year. A tsunami advisory has been issued.

A major, 7.8-magnitude earthquake struck in the North Pacific Ocean on Thursday, according to the United States Geological Survey. The earthquake prompted a tsunami advisory, the second-highest alert level, for some coastal portions of western Alaska.

Researchers are using a 3D map of the ocean to get a detailed understanding of life beneath the surface, a breakthrough that could help preserve the fragile ecosystems that basically keep the entire world alive. Ecological Marine Units (EMUs), created by ...

Plastic risk maps reveal hidden ocean hotspots where wildlife faces harm from ingestion, entanglement, and chemicals.

A new global map of the world's oceans is so visually stunning that it could be mistaken for art. The paintlike swirls of the visualization, which was released earlier this month by Los Alamos National Laboratory, depict global water surface temperatures.

In an exciting development in the pursuit of extraterrestrial life, NASA has uncovered and mapped out underground oceans on several moons. This major technological achievement could potentially open up new avenues in our understanding of life beyond our own planet.

NOAA explorers discovered a massive underwater mountain near Palau using sonar mapping during ocean exploration cruise.

It extends the range of the previous map by 10 degrees north and covers a 2.4 times larger area. Divided into 500-m (1,640-ft) grid squares, 23 percent of these map squares have at least one modern sonar depth measurement. Of particular interest is the new maps inclusion of the Factorian Deep, which is the deepest point known in the Southern Ocean.

Scientists are mapping the entire ocean floor as part of an ambitious project that could finally find the missing Malaysian Airlines flight MH370. They will use state-of-the-art technology to explore every contour of Earth’s oceans by 2030. As well as ...