Small electronic devices,radios,laptop or hand held computers,other
devices.You can put that stuff in a metal container with a close/snug
fitting metal lid,that should work ok.Some people say something like
some copper screen wire will serve as a Faraday cage to protect the
electronic devices.I have never tried it out before,so I really don't
know.Of course all of that would need to be done before a ''big one''
goes off.
cuhulin