Heavy mirrors or pictures should not be placed over beds or sofas because there's always a risk of them falling onto people in a quake. If wall hangings are to be hung over places where you sleep or sit, they should be soft and lightweight items only.
Move the bigger and heavier framed items to other areas in the home where they're less likely to cause injury to anyone. These objects should be hung on closed hooks so that they can't bounce off the wall (as shown).
In other words, when making your selection, make sure to choose a hook that will stop the wire backing on a picture, mirror or plate from jumping off the hook.
Hangings can also be stabilized by putting earthquake putty behind the bottom corners.