After I read it all, there's really nothing I want to extract. One article sounded interesting, in that they accepted there must be a physical limit to surface ground motion, but then they used acceleration, for which there is no physical limit!
Another went heavily into predicting ground motion for the next great Cascadia event, but again they went with acceleration. One article on basin motion in Seattle went with PGV, but I failed to find the point. I always like to read the articles on stress modeling for adjacent faults, but I always find this to be a bit of a dream.