"earthquakes don't kill people, buildings do".
Okay. That's easy to solve. Buildings should be outlawed. Then earthquakes could just run rampant, and no one would be hurt by them. :o)
Then, since guns don't kill people, people do, then people should be outlawed. Heh. Heh.
Seriously, though, since it can't be about earthquake prevention, it's got to be about mitigation. That's something folks have to keep in mind if they want to build/live/work there.