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

Earthquake experts have long warned of a looming "Big One" that will have devastating impacts. A study says warning signs continue to grow in 2026.

Record stress is building on Southern California's San Andreas and San Jacinto faults, raising the risk that both could ...

California isn’t exactly where it used to be. Here’s how earthquakes have gradually reshaped the state over time.

Venezuela’s powerful quakes come as a study finds Southern California fault stress at a 1,000-year high.

New research finds the San Andreas and San Jacinto fault systems are in a “critically loaded” state, with stress levels that ...

A moderately strong, 5.6-magnitude earthquake struck in Northern California on Wednesday, according to the United States Geological Survey. The temblor happened at 8:10 a.m. Pacific time about 7 miles ...

Most homebuyers check school ratings, flood plains, and commute times. Very few pull up a seismic hazard map. That oversight can be costly, sometimes catastrophically so, because a handful of fault ...

A new study says Southern California’s San Andreas and San Jacinto fault systems have reached their highest tectonic stress ...

A 5.6 magnitude earthquake rattled parts of Northern California early Wednesday, according to the United States Geological ...

The string of moderate earthquakes occurred within hours along a seismically active stretch near the California–Oregon border.

Note: Map shows the area with a shake intensity of 3 or greater, which U.S.G.S. defines as “weak,” though the earthquake may be felt outside the areas shown. All times on the map are Mountain time.