California, long known for its seismic activity, is experiencing an alarming increase in geological shifts—and some fault ...

Multiple tremors were recorded by the USGS over the past week, including one which struck as the Oscars ceremony was underway.

That land will now be permanently preserved and managed as part of a new state program focused on the San Andreas fault’s ...

The US Geological Survey (USGS) detected five quakes along the San Andreas fault that experts say is overdue for a magnitude ...

The U.S. Geological Survey said this is the most 4.0 or above earthquakes to strike Southern California in the past 65 years.

California has been rocked by at least nine earthquakes since Thursday, raising fears that the "Big One" could be near.

The three magnitude-3 quakes near Petrolia took place near the northern portion of the infamous San Andreas fault, a major fracture in the Earth's crust that spans 800 miles up and down California.

Previous reports from the USGS have noted the danger posed by the Hayward fault. Though less of a household name than the San Andreas fault, the Hayward fault poses a significant risk, the agency ...