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

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

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

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

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

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

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

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 ...

A massive earthquake off the Pacific Northwest coast is not a distant abstraction but a well-defined geological threat. Along ...

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