I am guessing that about half of my collection was knocked over during the quake which would be about 1,500 figures. Although I lock the curio doors and have the curios secured to the wall studs with earthquake straps, that doesn't prevent the figures inside from falling over and, worse yet, falling between the front edge of the shelf and the doors down to lower shelves. These are usually damaged because of the distance they fall. Also, several figures get trapped in that space and will fall when I open the doors. I am waiting for the after shocks to stop (we have had a couple strong enough to shake the house) in the first 24 hours since the main quake before I start cleaning up.
I am going to take this "opportunity" to remove all my figures, dust them, and clean the shelves. In addition, I am going to secure them with tacky wax, so I hopefully don't have to go through this again. The Chino Hills earthquake about four years ago, on the same Puente Hills thrust fault, knocked over almost as many figures as the current La Habra earthquake. At the time, I rationalize to myself that this probably won't happen again anytime soon and put them all back up without tacky wax. A big mistake!
As might be expected, the figures made with smaller bases (e.g., Imperial, Hiriart, etc.) are less stable in a quake. Almost every Imperial figure I have displayed was knocked over. Also, mounted figures without bases are unstable. Here is what my Imperial Egypt and Sudan square now looks like after the quake. My Trophy Boxer Rebellion figures faired well, but the walls fell over on them. My Blenheim collection didn't do so well. Interestingly, the Blenheim flag bearers are still standing since I used tacky wax on them because they were top heavy.