There is no easy explanation for how the San Andreas fault, responsible for some of America's most powerful earthquakes, has ...

The San Andreas Fault, which stretches roughly 800 miles across California, hasn’t triggered a major quake in decades, and ...

Back-to-back earthquakes rocked the area north of Los Angeles near two of California's most significant faults — including ...

An earthquake has struck California in a rare location which has not seen a seismic event in the 21st century, with one ...

The San Andreas fault's prolonged silence has led to increased tectonic strain, raising concerns about a potential large ...

Two earthquakes rocked California in back-to-back days as fears about two major fault lines have been “real and growing.” A ...

Earthquakes remain one of the top concerns for millions of Californians. While the San Andreas Fault dominates the public imagination, a leading expert says the state’s seismic risk is far more ...

"We needed to go explore by excavating it." ...

Earthquake faults deep in Earth can glue themselves back together following a seismic event, according to a new study led by researchers at the University of California, Davis. The work, published in ...

Scientists used to think so-called “slow slip events” were “theoretically impossible.” Now these subtle tectonic shifts could ...

"For a large earthquake to occur, the accumulated strain on the fault must exceed the strength of the asperity. It’s a little ...

It appears the two big earthquakes in Venezuela that occurred in rapid succession may have involved two separate fault lines. Several faults intersect in this tectonically complex region.