[warren_s]

We started getting SQS errors from us-east-1 around 05:08 UTC.

We also have a bunch of files on S3 which Cross-Region Replication hasn't yet replicated... I think that depends on SQS as well.

[robotpony]

Can confirm. We were also seeing SQS errors around that time. We had some Opsworks instances reboot as well, but only minor outages overall (us-east and us-west).