Three huge tectonic plates meet at the Mendocino triple junction off the coast of northern California, and a new study ...

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.

What appears to be three tectonic plates in a map may act like five pieces that move underground. Northern California ...

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

Researchers have identified an ancient tectonic fragment, the Pioneer fragment, buried under the coast, which may exacerbate earthquake hazards associated with the San Andreas and Cascadia faults.

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

The tectonic plates are among the most powerful forces on Earth, exerting tremendous influence over every single life that unfolds on this planet. They are both creators and destroyers, capable of ...

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

A new study suggests that tiny, mineral grains — squeezed and mixed over millions of years — set in motion the chain of events that plunge massive tectonic plates deep into the Earth’s interior. The ...