Is this spam?

I received an email from Amazon saying in the subject line: Your order.
In the body of the email it says I have been selected to receive a $50.00 Amazon gift card to answer a short survey about my order. I have not ordered anything from Amazon. I don’t know if this is spam or if someone has stolen my identity. I have checked my accounts and there are no charges yet. Has anyone else had this happen? I don’t want to open the email in case it’s a virus.