As a California native who grew up in elementary and high school hearing constant talk of the eventual "big one" I always have earthquake risk in the back of my mind. How big an issue is this for Tesla? Let's say a 7.X+ magnitude quake struck somewhere near Fremont - how long could it shut down Tesla production? Unlike some other makers they are extremely vertically integrated, and they have only one manufacturing location. Having all this concentrated in one spot for a company with a $30 billion dollar market cap seems a bit risky perhaps. Or perhaps it's too late at night and my risk perception is way off.