Love your quilt. I found two links from the same website that I think are this pattern:
https://www.thespruce.com/four-squar...attern-2820820 and:
https://www.thespruce.com/double-fou...attern-2821200
That website seems to have many block patterns that look interesting too. So, thank you for showing your great quilt(love the colors also) and for helping me connect with a new informative website.