Recently, i had to clean out the trunk of my old car and looked through a kit i put together some years ago to help in urban emergency preparedness. This kit had tools that i thought would be useful in an earthquake type urban emergency, and some of these things actually were used in the 1994 quake in SoCal.

So this list is not well thought out and might be a starting point for things to have in addition to your psk, sak, fak, bob and other three letter kits.

10 ABC dry chem fire extinguisher
D-Handle spade (useful for scooping up debris and broken glass)
small fire axe with spike (not actually used for emergencies yet, did split wood for camping)
4 foot prybar (actually used for opening doors that were stuck because the frames were warped by the quake, the trick is to lift up the door at the bottom to take pressure off the lock)
small prybar
channel lock pliers
8 inch adjustable wrench (shut off gas main, also used in car emergencies)
claw hammer
reversible slotted/philips screwdriver (car emergencies mostly)
roll, duct tape (gotta have duct tape)
baling wire (car emergencies)
large polypro tarp
box of heavy duty trashbags
100 feet of 1/8 inch clothesline
old spare boots with socks (i wear sandals in the summer <img src="/images/graemlins/smile.gif" alt="" /> )
cheap hardhat
box of nuisance dustmasks (used more often to help people move)

Anyway, you probably don't need the big stuff but the small hand tools and supplies are really useful to have around.