Mythbusters Recap: Earthquake Machine
Tesla's Earthquake Machine. Nikola Tesla was a bit of a crackpot. In his latter years he claimed such inventions as mind control, a death ray and even the ability to split the earth in two with strategically-placed explosives. We'll never know about most of those. But he also claimed to have created an earthquake machine.
This hand-held oscillating device is allegedly so powerful that when Tesla bolted it to a girder in his lab, the building began to shake and pandemonium ensued. The fire and police departments were there and only a hammer to the device stopped the shaking.