After improper shut down, my Western Digital 1T

Ouch. It might have crash, sorry about that. On that big of the drive, if it doesn't shut down right, it can ruin it very easy. When you shut down properly it parks the head, and when it doesn't the head doesn't get park, and it tryies. When that happens it will crash the drive. I would try to do some diagnostics to it and check and I hope I am wrong, but it doesn't sound good at all.