Have you experienced an earthquake firsthand? If not and have 10,000,000 yen (106,854 USD) to spare then you may be interested in this earthquake simulation chair by Hakusan.
The chair can simulate varying magnitudes of earthquake and can be synced with videos of earthquakes to give you the feeling of actually being in one.
The video over at World Business Satellite shows a lady being thrown back n forth in the chair ^^;
Photo via Robonable.