I stand corrected. Looking at https://cloud.google.com/compute/docs/zones?hl=en https://cloud.google.com/compute/docs/zones?hl=en, it seems that GCE has multipl

I stand corrected. Looking at https://cloud.google.com/compute/docs/zones?hl=en https://cloud.google.com/compute/docs/zones?hl=en, it seems that GCE has multiple zones in the same locale (region). I might have confused with Google's internal setup, which during my tenure there, was heavy on using replication across locales, up to systems like Megastore and the 200ms synchronously replicated commit.