They aren't speaking in terms of damage that results...
You have notice with hurricanes.
With Tornados all you have is notice for a quick duck an cover.
Tornados are not events you can evacuate and get out of harms way.
For a natural disaster--a hurricane is the "best" destructive disaster you can plan properly for.
Earthquakes, Tornados--you just do not have the luxury of one to several days warning.
You cannot prevent a natural weather disturbance--you can only deal with it. I'd rather have a hurricane that I can personally avoid than teh other two disasters for which I pretty much can do nothing but save my life.
Well, that's what I've always thought -- but after Katrina we've been hearing the opposite around here. Kind of like -- don't complain about your tornadoes you could be having hurricanes. But then again -- I've never lived through a hurricane. That is why I asked.