Maybe it's from living in CA all my life, but having ridden many out many quakes, my concern for 'The Big One' is a little less than my concern is for an astroid hit... which isn't much.
Seems odd. We have a non-zero (hopefully pretty good) chance of spotting an incoming asteroid, at which point we would calculate everything about the time, place, and severity of the strike with extremely high precision. We have none of that for earthquakes.