A hidden chunk of an ancient tectonic plate is stuck to the Pacific Ocean floor and sliding under North America, complicating ...

Focusing on an area off the coast of Crescent City, California, the researchers used autonomous and remotely operated ...

Scientists are uncovering a hidden and surprisingly complex earthquake zone beneath Northern California by tracking swarms of ...

A hidden shard of ancient crust has been detected where California’s San Andreas system collides with the Cascadia subduction ...

Seismic tremors reveal a shallow fragment of ancient tectonic plate beneath Northern California, helping explain damaging ...

A 6.0 magnitude earthquake strikes off Oregon coast, triggering tsunami alert and concerns of aftershocks, as the Cascadia ...

By tracking swarms of very small earthquakes, seismologists are getting a new picture of the complex region where the San ...

Many of the state's largest earthquakes have struck near the junction, where the Pacific, North American and Gorda plates ...

A 6.0 magnitude earthquake struck off the Oregon Coast on Jan. 15. The earthquake was detected around 7:25 p.m., ...

Tremors beneath Northern California show hidden plate movement, helping scientists better understand where future big ...

Three of the great tectonic plates that make up the Earth’s crust meet at the Mendocino Triple Junction, off the Humboldt ...

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