A major earthquake that sent reverberations through Northern California could mark the beginning of an active period of quakes, scientists warn. “There are going to be aftershocks; you don’t have a ...

Beneath California’s glittering cities lies a monster that never sleeps — the San Andreas Fault, a massive crack between two tectonic plates grinding past each other. Scientists warn that the southern ...

In earthquake country, the meandering paths of quake faults easily get seared into memory in the same way as a California freeway map. An earthquake fault is a fracture in the ground between two ...

An aerial view of the La Cañada Flintridge foothills shows dust and dirt thrown into the air following a magnitude 5.9 earthquake from Oct. 1, 1987. (George Rose / Getty Images) Monday's magnitude 4.4 ...

Last Monday, April 14, an earthquake caught many people’s attention in Southern California. It was centered near the town of Julian about 35 miles inland from San Diego and triggered the USGS ...

Monday's magnitude 4.4 earthquake centered four miles northeast of downtown Los Angeles was modest but packed quite a jolt. Although no major damage was reported, experts say the temblor was in the ...