What is the last time that AWS gets two consecutive major outages within, maybe, 30 days?

Last one was 10 days ago.

https://news.ycombinator.com/item?id=9980222

+1, Also it was down on leap second. http://mashable.com/2015/06/30/aws-disruption

To be fair, that was not really AWS's fault, nor (apparently) a leap second issue:

http://www.bgpexpert.com/article.php?article=167

https://twitter.com/Axcelx/status/616058414746202113