They are separate datacenters, I don't think they make any promises about how far they are apart from each other, but at least in some regions they are 10+ mile

They are separate datacenters, I don't think they make any promises about how far they are apart from each other, but at least in some regions they are 10+ miles apart. The AWS Cloud infrastructure is built around AWS Regions and Availability Zones. An AWS Region is a physical location in the world where we have multiple Availability Zones. Availability Zones consist of one or more discrete data centers, each with redundant power, networking, and connectivity, housed in separate facilities https://docs.aws.amazon.com/aws-technical-content/latest/aws-overview/global-infrastructure.html https://docs.aws.amazon.com/aws-technical-content/latest/aws...