Geoffkait just don't live next to the highway or train. Where I live we have had one earthquake in 28 years it lasted 10 seconds. If you wan to spend money to protect your system from a 10 second event knock yourself out.
Actually, if you live in a sky scraper the wind can sway these buildings and move them several inches. This is what caused the windows to pop out of the John Hancock building in Boston. A few inches would definitely cause many turntables to launch their tonearms. So us vinyl guys would do well staying away from sky scaper apartments.
