Correct till 17 may:
us-weast-2 (Oregon)
or
us-east-1 (Virginia)
If you signed up for an AWS account on or:
After May 17, 2017, the default region when you access a resource from the AWS Management Console is US East (Ohio) (us-east-2);
For older accounts, the default region is either US West (Oregon) (us-west-2) or US East (N. Virginia) (us-east-1). For more information, see Regions and Endpoints.
Correct from 17may:
us-east-2 (Ohiao)
Correct till 17 may:
us-weast-2 (Oregon)
or
us-east-1 (Virginia)
If you signed up for an AWS account on or:
After May 17, 2017, the default region when you access a resource from the AWS Management Console is US East (Ohio) (us-east-2);
For older accounts, the default region is either US West (Oregon) (us-west-2) or US East (N. Virginia) (us-east-1). For more information, see Regions and Endpoints.
https://docs.aws.amazon.com/emr/latest/ManagementGuide/emr-plan-region.html