Dozens of active faults under millions of homes ... See the maps and hear the history that helps us understand exactly why it’s so important that you are ready.

While not a household name like the San Andreas, the Elsinore fault is part of a larger seismic zone that experts fear and ...

In this type of fault, the block of rock above the fault plane, known as the hanging wall, moves downward relative to the block below, called the footwall. Normal faults are typically found at ...

A magnitude 5.2 earthquake jolted southern California Monday morning near San Diego felt as far away as Mexico, according to ...