I think the potential for real big issues with the San Andreas fault is on the northern end of it. Central CA and North of SF. Further north in Oregon/WA is subduction zone land. Cascadia subduction zone.. Capable of big league tsunamis...Bad juju.
I had never heard of the subduction zone until a few weeks ago, a couple I know had become aware of it and by the sound of things it could be an earth CHANGER
I disagree the southern portion needs to catch up with north it’s overdue