Given enough time, all these things will indeed happen. For instance, the New Madrid fault appears to have been causing major earthquakes every 100 to 200 years for quite a long time.
We're closing in on 200 years since the last one.
It's like they've come up with a whole new genre since Hurricane Katrina, the "imminent natural disaster on a Biblical scale scenario" , which is ok I guess, since "reality" shows are getting pretty stale.
Either the producers think that this kind of programming is going to be really popular and make them a lot of money, or the world really is coming to an end, and the apocalypse is upon us and we are all DOOMED.
Like I say, I think I'll have a beer.