Well according to this source: http://www.nfpa.org/news-and-research/fire-statistics-and-re..., there were 358K+ home fires in the US alone between 2010 and 2014 and I'm guessing that US has pretty good fire safety standards compared to the rest of the world (and this doesn't even include buildings which are not homes). 73K per year doesn't seem so crazy anymore.

I doubt that US has that much good fire safety standards when compared to - say - Europe.

There is generically a far wider use in the US of combustible materials in buildings (compared to Europe) and this is probably only mildly balanced by the low density of housing (with the obvius exception of the relatively few big cities).

If we use these data:

https://www.usfa.fema.gov/data/statistics/fire_death_rates.h...

They are better than before: https://www.usfa.fema.gov/downloads/pdf/statistics/v12i8.pdf but not enough.

Between 3000 and 4000 deaths per year (out of a population of around 330 millons) is 0,001 % or 1 every 100,000,which is still very, very high.

Except that the comment I was replying to was taking specifically about buildings of the same size as the London one - and clearly taking about fires of a comparable magnitude to the London one (otherwise their comparison would have been meaningless). Home fires are irrelevant to that.