What would happen to the

What would happen to the Internet economy (e-conomy?) if San Francisco were hit by a major earthquake? Last time a biggie struck (in 88 or 89, I think), the phone system there was all goofed up for days, the power was out, the whole magilla. I would assume that all the big kids (Yahoo!, eBay, etc.) have mirror sites around the globe and would not be affected too much, but what about all the smaller sites…not to mention the purchasing power of the Bay Area being offline for a few days?