[Thermalseeker]

Nothing as far as I know is built to Earthquake code.

Some things are, but most doesn't appear to be up to a real shaker.

If you look at the bridges and overpasses along I-40 in the vicinity of Memphis, TN, you'll see cable restraints that have been installed between the bridge abutments and the spanning girders to reduce the chance that the bridges will shake apart and collapse during a major quake. Other than that, though, there aren't many visible signs I've seen of any earthquake code being followed like what you see in So. Cal.....

[OeOeO]

In Chicago in the late 80’s or Early 90s there were headline scares of an imminent New Madrid eruption. (It was the first time in my life I had heard of it.) Our company spent lotsa bucks reinforcing things like data tape racks. Chicago claims to have high building code standards
but nothing's proved til something happens,like the WTC.
Of course we sit on a giant bed of mud and sand like Mexico City,that may help.