I'm in no hurry for that ice age, but 100 - 1000 sounds optimistic to me! Of course I'm in the middle of winter here, so it's easy for me to think the age has begun already.
There is something wrong with modern buildings, one thing I think is they no longer use the irregularly-shaped blocks like the ancient megaliths often incorporated. The theory is that the vibrational rate of the quake might crack a few of the stones, but most will be out of range- something like that.
In the photo, it looks like the solution is to build everything out of bookcases, those held up well!
The funniest part is that the worst building was the "Department of Defense" - they couldn't even go into that one to get their bookcases!
It's fairly hot here - not off the charts or anything, but we are getting some of the heat from Aus blowing over - they are hotter than usual.