Need info from people living in earthquake zones.

I have never lived in any quake zone In my opinion, if you have a big backyard, build a small storage in the yard to store the needed supplies. It would be much easier to dig out than having a whole house on the top of it. Some people in tornado zones have small underground shelters near their house. It would also be good to store stuff in there.

If your garage doesn't have a part of your house on the top of it, or better yet it is away from your house, then I would think it is ok for storing supplies. I'd still take backyard storage over garage.