For generations, scientists believed that the West Coast’s two great earthquake engines — the Cascadia subduction zone and ...

Accidental landing of a research vessel in the San Andreas zone revealed the repeating patterns tribuldite in its core.

New research offers the theory that the San Andreas fault and the Cascadia subduction zone could produce devastating back-to-back earthquake disasters.

Down in California, the San Andreas Fault marks the boundary where the North American and Pacific plates are sliding past ...

A Cascadia subduction zone earthquake is coming for the Pacific Northwest, and when it hits, scientists now believe, it could cause the San Andreas fault in California to go off.

Scientists have uncovered evidence that megaquakes in the Pacific Northwest might trigger California’s San Andreas Fault. A research ship’s navigational error revealed paired sediment layers showing ...

One of the most dangerous faults in the United States, the Cascadia Subduction Zone, may be able to trigger an earthquake on the San Andreas Fault, a new study says. But some scientists want more ...

LONG BEACH, California -- During an earthquake study conference in Long Beach, a local expert said California's infamous San Andreas fault is due for a massive quake. "The San Andreas fault is locked, ...

LONG BEACH, Calif. (KABC) -- During an earthquake study conference in Long Beach, a local expert said California's infamous San Andreas fault is due for a massive ...

When a magnitude 7.7 earthquake shook Myanmar on March 28, 2025, it wasn’t just another powerful tremor—it was a geological curveball. The quake ripped open more than 500 kilometers (317 miles) of the ...

LOS ANGELES (KABC) -- A group of emergency managers, geologists and interested residents took part in a tour of the San Andreas Fault over the weekend. The tour was led by seismologist Dr. Lucy Jones, ...