I've heard tons of stuff on Telsa. The funniest one was that he was involved in the so called "Philidephia Experiement" which, if it actually did ever happen, happened after he died I believe.
The Death Ray story was also good (yeah, that whole thing in Sibera, that was apparently Telsa, according to the good old conspiracy theories).
The earthquake story, from what I've heard, was an accident. He created a machine that could simply break anything by finding the correct frequency, or something like that. So, he had a long iron bar cemented into the earth in his lab. Sticks the machine (it was apparently really small) on the iron rod, selects the frequency for iron, and the next thing he knew, the buildings across the street (I think his lab was somewhere in NYC, no?) were shaking, and in a panic he took a crowbar to the machine, utterly destroying it in the process.
He did make the worlds first remote controlled boat, that was pretty cool. Simple radio flicked on a light, and the boat would "count" numbers to simple math equations (1 + 1 = 2). It'd also drive around, controlled by a small controller he held in his pocket
. Scared a bunch of people with that.
Another good story was the "Wireless Power" one, that I heard from M. Krass. Telsa made a nice big Telsa Coil, gave some people lightbulbs, stood them out in a field, flipped the switch, killed them all instantly.
Tesla was one crazy guy, I only wish there was more concrete stuff on all the wacky stuff that he did.