Memorizing seven continents feels settled, like learning the alphabet. A new study argues the ground rules are less tidy.

It was a groundbreaking discovery. Scientists have found previously concealed fault lines along California’s north coast, ...

A hidden chunk of an ancient tectonic plate is stuck to the Pacific Ocean floor and sliding under North America, complicating earthquake risk at the Cascadia subduction zone.

Carbon released from Earth's spreading tectonic plates, not volcanoes, may have triggered major transitions between ancient ...

The two halves of the African continent are moving apart at a rate of a few millimeters each year, geologists have calculated ...

Our planet has experienced dramatic climate shifts throughout its history, oscillating between freezing "icehouse" periods ...

Invisible earthquakes are revealing a hidden tectonic puzzle beneath California’s most dangerous fault zone.

Learn about the movement of tectonic plates off the coast of northern California, a process that could incite major earthquakes.

New models suggest that Europa has very little tectonic activity at its seafloor, which is potentially catastrophic news for the hopes of finding alien life within its ocean.