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, sparking concerns that we could be drastically underestimating the earthquake ...

Imagine a scenario where the Pacific Northwest gets pummeled by a magnitude nine earthquake, only to have California's most ...

The Carrizo Plain in eastern San Luis Obispo County contains the most strikingly graphic portion of the San Andreas Fault. Sediment cores recovered from the Pacific seafloor suggest that megathrust ...

For generations, scientists believed that the West Coast’s two great earthquake engines — the Cascadia subduction zone and the San Andreas fault — operated on separate geologic stages. One dives, one ...

Earthquakes are often associated with catastrophic events, but a recent study highlights the significance of tiny tremors in understanding seismic risks. Researchers have uncovered a complex web of ...

Over the last few days, the Coachella Valley has experienced more than 20 earthquakes, causing concern among some residents.