Check the ground level. How many dams in the area, how many seawalls, how many canals.
The Oakland hills won't flood, but a lot of bayside/riverside developments will with the bridges connecting them knocked out.
Oh, before anyone else says it, It's all Bush's (and the Hayward) Fault!
"Earthquake ain't a flood."
Of course it ain't, but if you live here and don't prepare for the earthquake, than you are pretty much begging to be a victim.