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 ...

California’s most dangerous faults are not only defined by the headline grabbing magnitude 7 shocks that topple freeways and ...

Seismologists have discovered hidden faults at the Mendocino Triple Junction by tracking tiny earthquakes using a new ...

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

A federal judge on Thursday dismissed a U.S. Department of Justice lawsuit against California that sought detailed voting ...

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 ...

Sometimes to truly study something up close, you have to take a step back. That's what Andrea Donnellan does. An expert in Earth sciences and seismology, she gets much of her data from a bird's-eye ...

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