Cable elevators

Propping the cables up on "Isolators" would minimize the area of the cables exposed to seismic type vibration by quite a bit. Another technique that might be better is suspending the cables and cords from the ceiling with high test fishing line on eye hooks with a rubber band on one end of the fishing line.

You don't need to spend a bunch of money on elevators if you are just a little bit handy.  I made mine out of 2 1/2" poplar boards (4 pieces glued together and sanded) and then ran them through a table saw in the center to cut the slot for the ribbon cable.  See last picture on my system page.  I made a bunch of them for just the cost of the wood.

Wow. Great comments and ideas. I will experiment and see what seems to work best. Thanks to everyone so much for your input.

OP,  You may also look into elevators from Red Dragon Audio, I am using these to keep my flat cables above carpet to great effect. And they are quite inexpensive. 

https://www.reddragonaudio.com/collections/frontpage/products/esd-xl-cable-elevators

I have a set from Music Direct..so far the sonic value has been zero, they sit on carpet. My friends seem to get a good laugh out of it and like to remind me what a waste of money it was. I'm glad be to a source of inspiration for them.