I would argue that a taller building would actually be safer in an earthquake, given that for a taller building you'll need pilings driven down to bedrock in order to support the weight of the structure. Also, taller buildings receive more attention from safety inspectors and the like.

A new 50-story apartment building is far more likely to survive an earthquake without damage than a 3-story apartment built in the '70s or '80s (even with retrofitting).