If you want alerts on this sort of thing, my side project StatusGator https://statusgator.io will alert you when services post downtime on their status pages. My dashboard blew up this morning with a ton of red and yellow as soon as Amazon started flaking.
Edit: I suppose it's time to invest in a multi-region setup. Since StatusGator is hosted on Heroku in the US-East region, it is in theory affected by this problem though so far is still up.