Regarding the building Wolfepack is working in, I think it is a toss up. While yes, some of those buildings are un-reinforced, a lot of them were also old warehouses and had VERY HEAVY DUTY wood beam construction.

Liquefaction might or might not happen at any given location.

I do think they are very non-optimal as I worked in a similar one (in almost the same place) until about a year ago and I certainly appreciate the risk.

But the way I look at it, you take some precautions (hard hat, extrication gear, etc.) and you take your chances.

If the building collapses and you die... well, not much you are going to do about it.

If you are hurt.. Well, be prepared as much as possible and have enough water to survive for several days until someone digs you out.

Otherwise, I see Wolfepack's approach of having his kit as a good one. It keeps your options open. No point in giving up before you start.

-john