A magnitude 4.5 earthquake has rattled southern Texas in the vicinity of San Antonio, the U.S. Geological Survey (USGS) reported. The quake struck at 9.26 p.m. on Wednesday, at a depth of about 2. ...

Texas forecasters issued a series of early-morning warnings about “life-threatening flooding” along the Guadalupe River.

The San Andreas Fault Is Sleepy Near Los Angeles. Researchers Have an Idea Why. A new paper in the journal Nature offers an explanation for why the major fault line is overdue for the Big One.

This section of the San Andreas, located near the tiny central Californian town of Parkfield, last shook back in 2004. That means it’ll soon be ready for another rumble.

It has been about three centuries since the last great earthquake on the southern San Andreas Fault, the most treacherous seismic hazard in California. For decades researchers have puzzled over ...