David McNew/Getty Images

Recently built homes are seen in suburban neighborhoods on top of the San Andreas Rift Zone, the system of depressions in the ground between the parallel faults of the San Andreas earthquake fault, May 15, 2008 in the community of Highland, east of San Bernardino, California.

Everybody in Southern California knows what the "big one" is. But are you ready for it? Government leaders say they are. Emergency management officials last week issued what they say it the most comprehensive plan ever for a giant earthquake along the infamous San Andreas fault. KPCC's Frank Stoltze joins Madeleine from downtown, to talk about it.