Earthquakes usually occur along fracture zones in Earth's crust, where large tectonic plates slide past one another and become locked. Stress builds up over long periods and is suddenly released in ...

The USGS source modeling, published in The Seismic Record, shows a compact source for the earthquake with slip occurring between 15 and 35 kilometers deep—deeper than might be commonly expected for ...

A new study suggests Southern California's major fault system is more stressed than at any point in the last 1,000 years.

The ground north and east of Los Angeles holds one of Southern California’s most uneasy meeting points. At Cajon Pass, the ...

Plates at subduction zones typically move just a few centimeters per year. But when accumulated stress at these convergent plate boundaries releases suddenly, the plates can slip several meters and ...

The Southern California Earthquake Center will utilize the National Science Foundation grant to expand their earthquake modeling programs. (Brittany Shaw / Daily Trojan) The USC-based Southern ...

In their rapid characterization of the magnitude 6.8 Al Haouz earthquake in Morocco, researchers suggest that the earthquake ruptured roughly 25 kilometers deep beneath the surface. In their rapid ...