From this article:
Arizona Is Planning For Exodus to State in Event of Major Calif. Quake
Government agencies, businesses and other organizations in Arizona plan to participate in an exercise to practice how the state would respond to a migration of 400,000 people following a catastrophic earthquake in Southern California.
The Arizona Department of Emergency and Military Affairs says participants in the National Mass Care Exercise in the coming week will tackle how to organize operations such as providing food, shelter and medical services.
Ummm I’m just throwing the idea out there, but how about instead a building a high wall along the AZ-CA border, with occasional machine-gun towers? Too extreme? Yes?
My question then becomes: what if the half-million displaced Californians decide to stay?