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

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

The San Andreas Fault runs nearly the entire length of California, a sliding boundary between tectonic plates. Its history is one of violent ruptures — earthquakes that have reshaped towns, destroyed ...

Geosphere, demonstrating the first evidence that the two faults have interacted repeatedly over thousands of years. The ...

OSU researchers find Cascadia Subduction Zone and San Andreas Fault may be synchronized — with the potential for quakes on ...

A 3.1 magnitude earthquake struck California’s Hayward Fault — a fault line experts call the most dangerous in America. Over ...

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

In the Bay Area, BART plans to automatically slow down its trains and have them come to a brief stop, as the system is ...

A California Geological Survey map released earlier this year depicts just how intense and damaging the shaking from future earthquakes will be across the state, revealing where the threat is most ...

Sleeping residents of California’s San Francisco Bay Area were rattled awake by a magnitude 4.3 earthquake in the early morning hours of September 22. The earthquake struck 1.25 miles east-southeast ...

Scientists are sounding the alarm on earthquakes that create a sharp, booming shock that triggers ruptures that move faster ...

A 3.2 earthquake struck the Central Coast early Wednesday morning, the U.S. Geological Survey said. The quake hit at 2:46 a.m. about 4 miles northwest of Pinnacles. It had a depth of 4.4 miles. The ...