I know I'm 3 pages late, and I didn't read anything lol, but as a wannabe engineer...
Most human HOUSES in earthquake prone areas are specially designed to withstand P and S waves from earthquakes. Therefore, technically anything inside your house should also be relatively safe.
I don't know about any of your houses, but I know most houses on the Ring of Fire have shear support, in which the house sways so it doesn't build up shear pressure from the movement of earthquakes. In fact, bolting stuff down makes it worse :P
Of course, on the other hand, too much sway could cause a dangerous harmonic motion that will just make it much much worse XD
In any case, accidents will and do happen. I googled around, a lot of people enjoy the use of these: http://www.worksafetech.com/pages/FSV2118.html