I remember a few years ago I was teaching a class to graduate students and it was this day. At the end, the designated official, they got to wear special vests, came in to make sure we did the drill.
It entailed everyone sitting under tables for a few minutes. It was kind of surreal.
It is good to be prepared and trained. Hopefully this will save lives when the next big one comes. Unfortunately, the death and destruction will be on par to a nuke going off (without radiation). Luck will be just as important as preparedness. The best defense is not living in a major earthquake zone.