Seismic vibration is at too low a frequency to be audible, and too low in amplitude to cause mistracking (unless you happen to be in an earthquake!)
If the problem is ground transmission of things like trucks, trains, or military ordinance (very) nearby, you'll be needing to soundproof/isolate the whole room, so the TT issue will take care of itself ;--)
Wall mounting is still the best solution.
.
If the problem is ground transmission of things like trucks, trains, or military ordinance (very) nearby, you'll be needing to soundproof/isolate the whole room, so the TT issue will take care of itself ;--)
Wall mounting is still the best solution.
.