In the mid-20th century, when people looked at a map of the world, they saw the familiar continents surrounded by vast, ...

The new map has also revealed an extinct mid-ocean ridge in the Gulf of Mexico and a huge rift scar in the South Atlantic Ocean formed by an ancient hotspot which cracked the planet's crust.

The satellite data details small changes in sea surface height which, through gravity, reflect the underlying topography of the sea floor. The latest version of the Scripps-NOAA ocean map offers a ...

Scientists have created the highest resolution map yet of the ocean floor, ... Red dots show locations of earthquakes with magnitude above 5.5 and highlight the location of seafloor ridges and faults.

The image below shows a bathymetric map of the ocean floor, where pink denotes the shallowest water (continental shelves and ...

A look at a global overview map of the ocean floors helps to understand the study. Even at low resolution, several tens of thousands of kilometres long mid-ocean ridges can be recognised on such maps.

The map shows thousands of previously unknown underwater mountains, called seamounts, between 3000 and 6500 feet high. It also identified inactive ridges where continents once pulled apart ...

Topographic or satellite maps of Earth may reveal ridges and troughs that crisscross flat plains on the ocean floor, making it seem as though the entire ocean floor has been mapped out, Ferrini said.