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

A newly identified link between two notorious geologic zones suggests a major earthquake at one site could trigger another ...

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

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 ...

Two fault systems on North America’s West Coast ... of that core and others they collected north and south of Cape Mendocino, the location where the northern San Andreas and Cascadia subduction zone ...

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 ...

The impact would be doubly as devastating as predictions for the impending ‘Big One’ and leave millions in harm’s way from ...

An aerial view of the La Cañada Flintridge foothills shows dust and dirt thrown into the air following a magnitude 5.9 earthquake from Oct. 1, 1987. (George Rose / Getty Images) Monday's magnitude 4.4 ...

Watch paragliders take flight at this secluded, picturesque California beach that was at the core of San Francisco's devastating 1906 earthquake.

A 4.4 magnitude earthquake in Los Angeles in August was along the Puente Hills fault system, a thrust fault that runs beneath one of the city's oldest and most densely populated areas. The fault's ...