“When the temperatures plunge rapidly below freezing, water in the ground will freeze and expand. As a result, the rock or ...

A rapid-fire barrage of 16 earthquakes slammed Southern California in less than 24 hours, reigniting terrifying fears that ...

What are frost quakes? Here's another interesting phenomenon that could happen with frigid air set to hit this weekend.

Some earthquakes are followed by a larger earthquake, in which case the first quake would then be called a foreshock. For example, the magnitude-9.1 Japan earthquake and tsunami in 2011 was preceded ...

They're hitting near an overlooked fault.

Over the last few days, the Coachella Valley has experienced more than 20 earthquakes, causing concern among some residents.

Another earthquake with a magnitude above 4.0 struck along the Riverside–San Bernardino County line overnight. Wednesday’s ...

More than 70 percent of Californians live within 30 miles of a major fault.

Many of the state’s largest earthquakes have struck near the junction, where the Pacific, North American and Gorda plates ...

Tremors beneath Northern California show hidden plate movement, helping scientists better understand where future big ...