New research uncovers a surprising clue in earthquake forecasting: tiny curved scratches on fault planes. These marks reveal ...

The San Andreas Fault is a continental transform fault that extends roughly 1,200 kilometers (750 mi) through California. It forms the tectonic boundary between the Pacific Plate and the North ...

This sudden jerk creates an earthquake. The San Andreas Fault is undoubtedly the most famous transform boundary in the world. To the west of the fault is the Pacific plate, which is moving northwest.

Alex Biston takes an offroad tour in Palm Desert to the San Andreas Fault, a continental rift that has caused many ...

The 6.9-magnitude Loma Prieta Earthquake in October 1989 was the most recent major quake associated with the San Andreas Fault, according to the USGS. That earthquake struck in the Santa Cruz ...

The biggest danger zones of the seismic variety are the Cascadia Subduction Zone in the Pacific Northwest, the San Andreas Fault in California, and the New Madrid Seismic Zone in Missouri.

such as the San Andreas Fault in California," says Boyd. The agency found that greater humidity in the eastern half of the country causes the processes to "happen faster so that evidence of fault ...

A magnitude 2.5 aftershock centered in the same area on the San Andreas fault occurred at 9:39 a.m. Friday, according to the USGS. People posted on social media that they were awakened by a quick ...

The USGS says it was about three miles from the San Francisco Zoo near the San Andreas Fault and the depth of the quake was five miles. There were no immediate reports of damage or injuries ...

Friday’s quake, and its much more powerful relative, likely both occurred along the San Andreas fault, said Robert Skoumal, a research geophysicist at the United States Geological Survey.