Twin earthquakes shocked California today, just four miles from San Bernardino, registering at about 3.5 on the Richter scale, as X quickly lit up with posts that said the quake felt like 'jolts ...

Southern California’s section of the San Andreas fault is “locked, loaded and ready to roll,” a leading earthquake scientist said Wednesday at the National Earthquake Conference in Long Beach.

New geological research reveals that the Mission Creek strand of the San Andreas Fault in Southern California is moving fast and could redistribute damage during an earthquake. The strand was previ… ...

The 90-mile creeping section between San Juan Bautista and Parkfield hasn’t seen a big earthquake in the modern record. Scientists are intrigued.

Cal State San Bernardino geology professor Joan Fryxell shows a map of the fault line as she leads hikers to a point on the San Andreas fault north of the campus in San Bernardino on Thursday.

An in-depth analysis of major long-term research on the San Andreas fault indicates that parts of the fault are likely to experience a major temblor sooner than previously believed, including the ...

New geological research reveals that the Mission Creek strand of the San Andreas Fault in Southern California is moving fast and could redistribute damage during an earthquake. The strand was previ… ...

Instead of zipping relatively neatly along the fault line under San Bernardino, a multi-fault earthquake—even a less powerful one than the 1812 temblor—could jump right across a very densely ...

The southern San Andreas fault shows a surface crack near Indio. A new report says a major quake on the fault could be twice as damaging as previously thought.