Today at 10:15AM, science will strike again when millions of Californians participate in the Great California ShakeOut, the largest earthquake drill in history. (I’ll be at the DMV. I wonder if I’ll need to drop, cover, and hold on.) Many schools and museums will have special activities as well as participating in the drill.

On Saturday, October 17, we’re celebrating the twentieth anniversary of Loma Prieta, the earthquake that struck during the World Series.San Francisco will hold “Where Were You in 89?” neighborhood block parties as well as resource fairs for disaster preparedness. You can also play Beat the Quake online.

All this frivolity over a serious subject—is it appropriate? People have died in quakes—at least 3000 in the great 1906 earthquake, 62 in Loma Prieta. We’re all at risk. Yet in my opinion, staying aware without staying terrified is the best way to handle living in a seismically active zone. (Or anywhere else, really.) And the games, fairs, parties, and drills allow people to learn and stay aware while having some fun.

California. We dance on the edge of destruction.