It’s been revised to a 7+, per Twitter.
That was so big it now has it’s own twitter page with 5000 people following it!
What I felt was much more than 30 secs - maybe more like 50 secs .. it was long enough that I ended up standing in my parking lot .. just in case my apt went down the hill. As I was standing there, I reached out and touched my car - it was still moving - so it lasted more than 30 secs.
I live right off 805 and 8, and it appears to be southeast of me .. but I’m on top of Mission Valley and we usually do feel the shakers more than those on the valley floor.