I tend to think that the thing about the big earthquake fear is that there really is nothing you can do. Bad weather in either direction you can prep for and it'll probably make a big difference; whether or not the ground rips apart under your feet, on the other hand, well it either will or it won't and there's not much you can do as an individual human being. More that whole municipalities/etc can do, for sure, but not much for you as a human.