Isn’t there a fault line there that runs right underneath the Cal stadium?
Yes the Hayward fault.
(Now called the East Bay
fault I believe)
Runs right through Cal State Hayward.
I recall a few decades ago walking part of it on the campus.
There was a pronounced crack, higher on one side than the other IIRC.
It was quite long.
Yes, and it also runs beneath several hospitals in Alameda County.
A major quake in Alameda County could be a true disaster, potentially swamping response resources.