A bomb threat is definately something to worry about, though.
Once upon a time, while talking with a customer about a particular LA datacenter's fault tolerant features (you know, generators, UPS, HVAC, diverse fiber entrances, etc...), they very calmly asked me what procedures we had in place in the event that a major earthquake struck the southland and dropped LA into the ocean or otherwise put the city underwater. I told them very bluntly that if an earthquake of that magnitude were to hit LA, I would *not* be overly concerned with their servers/circuit/etc., assuming I was still breathing. They were quite taken aback. ;)
I guess I should have been more clear. I'm not talking about nuclear bombs. I was talking about regular explosives (for lack of better wording) - pipe bombs and the latter. The type of quake you are talking about is up in the nuclear-bomb stratosphere, and that's not something that would keep me up at night worrying. Plus, I live on the east coast. We don't have to worry about these things called earthquakes for the most part. ;-) Rachel -- Women and elephants never forget. - Dorothy Parker