Seismophobia, fear of earthquakes for me, I guess?
Or maybe not. It's not the earthquake per se, but the shaking of whatever I'm standing on that gives me chills. Standing on wooden docks, for example, is a no no for me. Even floor vibrations due to anything (jackhammers, for instance) creep me out.
Oddly, though, I don't feel fear when on a boat, probably because I've accepted that it's normal for a boat to be shaking. So maybe it's just the thought that even the ground, which is supposed to be rock solid, stable, or foundation, can shake or become unsteady brings out the fear in me.