Deep beneath Earth’s surface, researchers have discovered an ancient seafloor buried for millions of years. This unexpected find, detected through seismic waves, offers new insight into Earth’s ...

The East Pacific Rise This broad, 8,000-mile-long bulge in the crust of the earth differs in many ways from the rest of the ocean bottom. It may be the result of huge convection currents in the ...

At the East Pacific rise, which is pushing a plate into the west coast of South America, the rate is 12.6 inches (32.2 cm) per year.