One fun thing that NIMBYs like to bring up when there’s any discussion about building is around evacuating in the case of a natural disaster. When you point out that, in the case of an earthquake, we’ll probably need to shelter in place they try to find the next possible natural disaster to distract with — even if it’s a once in a lifetime tsunami.
While California does seem to be preparing for the worst case scenario, they want to remind you that to get levels of inundation as drawn in these maps, there would need to be 9.2 earthquake in Alaska which would give Bay Area residents something like five hours to evacuate to higher ground.
So yes, while Alameda will be nearly completely flooded in the case of the once in a millennia tsunami, looks like there’s some high ground in the middle of Alameda where a large portion of people can wait it out. Bay Farm folks should probably head to San Leandro. You can zoom in here if you wanna make sure your address is safe. Mine is not but I have five hours to cross somewhere into Oakland or mid Alameda. Even if I have to go by foot I think five hours is sufficient.
Blogging Bayport Alameda 
Yes, you might have time to walk somewhere safe after an earthquake, altho’ I don’t know if I would want to walk through the Posey tube. A larger impact would be to the city facilities that are rooted in place when a good part of the island is inundated. So it might be informative to superimpose a map of important city facilities over the map of inundation to see what the city would lose. I’d bet your fire department has some ideas about that.
Comment by Hey You! — October 15, 2021 @ 7:33 am