An earthquake of magnitude 4.6 jolted the San Francisco area awake shortly before 3 a.m. on Monday, according to the United ...

Scientists were able to use the data from a fiber optic cable and a sensitive measuring device to “image” the Mendocino ...

Last winter, the magnitude 7.0 earthquake struck miles off the California coast, prompting tsunami warnings for coastal ...

West Coast citizens get crucial seconds of warning with Android ShakeAlert and MyShake earthquake detection apps that issue life-saving alerts before hazardous shaking. Such new technologies turn ...

A 4.3-magnitude earthquake was strong enough to rattle nerves in the middle of the night, especially in the heavily populated ...