Yes, if a terrorist blows up all of the several Amazon DCs holding your data, your data will be lost. This is true no matter how many DCs are holding your data, who owns them, or where they are. You can improve your chances, of course.
There have been region-wide availability outages before. They're pretty rare and make worldwide news media due to how much of the internet they take out. I don't think there's been S3 data loss since they got serious about preventing S3 data loss.
There have been region-wide availability outages before. They're pretty rare and make worldwide news media due to how much of the internet they take out. I don't think there's been S3 data loss since they got serious about preventing S3 data loss.