After the crash there were quite a few diversions to the San Jose airport nearby. I was really impressed by the way the San Jose approach controller handled the increased traffic load.
Specifically, I listened to the "KSJC NORCAL Approach #1" feed from around 1840Z-1915Z. Everything was business as usual at San Jose, up until around 1840Z when the diverted aircraft began to arrive, many of them at min fuel.
Great job by the KSJC controllers that day.
This I can attest to that I believe the areas are physically next to each other at the TRACON. From my tour there, the room is set up like a hub and spokes on a bicycle; each spoke is an area I can't remember which areas are which but I do remember seeing the areas for SFO, OAK, and SJC all being adjacent to eachother (read: backs to eachother), so they could turn around and yell out something if an incident happened. The ones that were on the far side comprised of the SMF, SCK, APA, and RNO areas.
Again, my memory is dodgy on this, as it was at least 5 years since that tour.