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 ...

The relationship between the sites means an earthquake in one zone can trigger an earthquake in the other in a phenomenon ...

For the first time, scientists have seen a subduction zone actively breaking apart beneath the Pacific Northwest. Seismic ...

Samples from the seafloor reveal evidence of several earthquakes along the West Coast’s two major fault zones happening in ...

These are two very different fault systems, but the sediment record suggests that in the past, at least three San Andreas ...

A future mega-earthquake in the Pacific Northwest could lead to the “Big One” along the San Andreas fault in California—or ...

EADaily, October 13th, 2025. The scenario of the apocalyptic film "San Andreas Fault" may become a reality for the United ...

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 ...

Geologic clues reveal a hidden link between two major faults. A Cascadia quake might set the San Andreas in motion soon after ...

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

Although Californians are relatively familiar with the San Andreas Fault, the Cascadia Subduction Zone is in many ways more dangerous. That fault, where the Juan de Fuca Plate is subsiding underneath ...

A massive Pacific Northwest earthquake could trigger a devastating second quake on California's San Andreas Fault, a new ...