Check out the top search terms for theFrontSteps since this second Berkeley quake hit about one hour ago.
It appears there is a bit of concern out there given the recent one on top of the other quakes over there near Berkeley.
I believe this is the post y’all are looking for:
San Francisco Neighborhoods Prone To Liquefaction And Earthquake Induced Landslides (Bedrock vs. Landfill Take Two) [theFrontSteps]