Researchers have developed a laboratory earthquake model that connects the microscopic real contact area between fault ...

The U.S. Geological Survey (USGS) reports a 2.9 magnitude earthquake struck southwest of Atascadero on Monday afternoon. The ...

All of 2025's earthquakes to occur in Southern California fit within that range, and many happened along the infamous San Andreas fault system ... in northern San Diego County near the mountain ...

San Diego County rests on four active faults — one of which is the San Andreas ... lie in the Elsinore Fault Zone, which runs about 110 miles. According to the Southern California Earthquake ...

The quake's epicenter was recorded 2.49 miles south of Julian, in San Diego County. According to the USGS map, the quake was felt widely across Southern ... larger San Andreas Fault system.

As the ground began to shake ... town of Julian, in San Diego County according to the U.S. Geological Survey. According to a USGS map, the quake was felt widely across Southern California ...

Three earthquakes, with magnitudes ranging from 3.0 to 3.6, were recorded near San Bernardino ... Diego County. The quake was along the San Jacinto Fault and southwest of the San Andreas Fault.

The mechanics of fault systems is much more complicated than lines on a map ... tiny by comparison. San Andreas stretches from Northern California to Cajon Pass near San Bernardino and includes ...

A map showing the location of the Puente Hills Fault in Los Angeles County ... Great 1906 San Francisco Earthquake (magnitude 7.8). In Southern California, however, the San Andreas Fault runs ...

A map displaying each of the seven major fault lines in the San Francisco Bay Area, and the probability of a magnitude 6.7 earthquake or higher occurring on each fault line between 2003 and 2032.