The discovery, made just off the coast of Vancouver Island in the Pacific Ocean, shows that a section of the oceanic crust is slowly breaking apart beneath the North American Plate. Using seismic data,

Strange features of a collision point between pieces of Earth's crust are evidence that the structure may be nearing its end, new analysis suggests. A careful analysis of the complex boundary where four tectonic plates meet reveals that one of the slabs is tearing itself apart.

Tropical Storm Sonia is churning in the Pacific Ocean and isn’t threatening land. The U.S. National Hurricane Center says the storm formed over the weekend and on Monday was about 965 miles southwest of the southern tip of Mexico’s Baja California peninsula.

Chicago-area residents aren’t strangers to tough winters, but could a phenomenon called “The Blob” make things snowier and colder than usual?

The Pentagon has deliberately shifted its strategy in recent weeks to striking suspected narcotraffickers in the eastern Pacific Ocean rather than the Caribbean Sea because administration officials believe they have stronger evidence linking cocaine transport to the US from those western routes,

The operation was one of several that resulted in the Coast Guard seizing more than 100,000 pounds of cocaine from ships in the Eastern Pacific Ocean.

The criteria for La Niña conditions have been met, according to NOAA’s Climate Prediction Center, and are expected to persist through the winter.

A recent marine expedition found fascinating new species in the deep Pacific, highlighting how little is still known about life beneath the ocean.