When people discuss a mega-quake on the west coast, no one ever seems to consider that transportation is going to come to a dead stop. A DEAD STOP.
The Sylmar Quake (6.6) lasted about 60 seconds, a long one.
The Loma Prieta (6.9) lasted 10-15 seconds.
The Northridge Quake (6.7) lasted between 10 and 20 seconds.
The ground dropped about 3 feet in some of these 6+ earthquakes.
Geologists say that the length of a mega quake (9+)is going to be in MINUTES, like around five (Japan's was over 5). They say that the un-reinforced buildings can last about a minute, but the rest of them will start coming apart at the 2-minute mark.
The mega-quake that hit Anchorage in 1964 (9.2) lasted about 4 minutes, and the land displacement was more than 35 feet at the surface!
Very, very few buildings have been built to withstand a mega quake, so the entire area for miles will just be piles of rubble. I can't imagine that the freeways are going to be any better -- I doubt that many overpasses are going to be left.
So, exactly where are the C-5s, that need 6000 ft of runway to land, going to come down? And if they can land, how will the water and supplies going to be distributed to the 22 million people who need it?
I've never even heard of a whisper of a plan for this. Nothing whatsoever.
In other words, folks, you'll be on your own. And it's going to UGLY!
Sue