The question was about the fiber routes, not the data centers. Damage a long distance away can impact providers. For example, when the Bay Bridge fiber route was damaged, several providers lost connectivity to MAE-West a few years ago. PSI is still reporting their connectivity to mae-west is down. http://www.psi.net/netstatus/index.shtml On Mon, 22 Apr 2002, Fred Heutte wrote:

There was a fire Monday afternoon in an old empty warehouse-sized grocery store on Foxdale Loop right next to the Capitol Expressway.

This is nowhere near the data centers in SJ I know about. Above.net is downtown on W. San Fernando next to the Fairmont Hotel, for example, and MAE-West is at 55 S. Market.

http://www.bayarea.com/mld/bayarea/3118835.htm