Honestly not really. Some of the older facilities took great care on site selection and some hardened building features, but modern sites are more based on power grid availability and are simply standard amazon distribution warehouse style buildings.

The redundancy is in having your data and infrastructure in multiple buildings and geographic locations.

This is due to a myriad of reasons but they all boil down to cost and practicality. The scale of modern facilities typically eclipses anything built 20 years ago by a huge margin which further limits site selection.

The days of AT&T long lines are long gone. Simply driving a standard SUV through the right wall or two in most facilities would be enough to cripple them for a long while, much less flooding or a direct hit by hurricane force winds.

Of course there are exceptions.

need to get the electricity from somewhere. Need to feed the people who work there.