Leviathan.Chaosx said:
Yeah I always thought they were in Japan then someone was saying CA, I can't find the post now, but oh well.
On topic I think it would be up to the utility companies to cut off power when needed to.
Yah, this actually reminded me a bit of the
rolling blackouts that California faced back in 2001. Although those had more to do with issues such as aging electrical infrastructure vs. demand, deregulation, and price gouging by energy brokers like Enron and not a natural disaster, the "mandatory rolling blackouts" that affected both residents and industries were very similar. Because of the size of the affected areas and the limits between purchasing electricity between neighboring states, the California rolling blackouts were also very similar in scope.
As mentioned in this article of the time...
http://news.cnet.com/Rolling-power-blackouts-darken-California/2100-1017_3-251091.html
...those companies that did not have the infrastructure in place (redundant data and telecom systems, backup generators, etc.) to accommodate were indeed affected and literally left in the dark. The ones here in Silicon Valley cited I read were Sun Microsystems and even parts of Apple's Cupertino campus, while others mentioned like Loudcloud were still operational due to backup power.
So while things are very likely different in 2011, I think depending on the size of the company that compliance with a general directive like this, especially in a state of emergency, is pretty much mandatory and the effects would be identical (again, depending on the company) in the US.
As mentioned several times in this thread and by others (including myself) in other threads, co-location is prohibitively expensive and it isn't surprising that SE didn't have such backup in place for a subscription-based server system. I am guessing their corporate and revenue-generating marketing websites were/are backed up, though.