30 years later, no significant earthquake, and earthquake drills are nothing but a distant memory. I think humans are really terrible judges of what "long overdue" means, especially related to geological events.
Yes, at some point there will be an earthquake. Yes, some people will die. But overreacting and worrying about it when humans have no ability to predict it is worse. The best way is just do what we have been doing, which is increase building standards, have once-a-year drills, and stop trying to predict when disaster is going to strike, because humans can't.
If this happens with hurricanes, I can only imagine how the perception of saftety/danger gets skewed with earthquakes—which occur way less frequently than hurricanes.
Some cities have made an effort to retrofit these buildings (Napa and Los Angeles come to mind) but there isn't a state driven effort to do so.