3 ms·

I'm pretty sure much of SF (marina, south beach, mid soma) are partially built on landfills are considered "liquification zones" by the city.

benmarks 7y ago
I think the term you're looking for is "liquefaction map" - I only know this term because we're exposed to the risk here in Charleston, S.C.: https://sf.curbed.com/2019/4/15/18311670/earthquake-map-california-geological-survey-liquefaction https://sf.curbed.com/2019/4/15/18311670/earthquake-map-cali...
- iamtheworstdev 7y ago
  That is scary to me. Should it be scary to me? In regards to liquefaction zones and earthquakes? I mean, i recently built a fence and the moisture in the ground made me conscientious of liquefaction when tamping for my gravel and posts, how does this play out for SF in an earthquake?
  - perchecriik 7y ago
    You're probably looking for the "Liquefaction Hazard Maps" page for the Bay Area: https://earthquake.usgs.gov/hazards/urban/sfbay/liquefaction/sfbay/ https://earthquake.usgs.gov/hazards/urban/sfbay/liquefaction... Disclaimer: I am a geologist, but I'm not a P.G., hence all that I say on this topic is bullshit. p.s., Does your conference have beer? If it doesn't, I'm not going. I mean, I'll be so happy when AGU rolls around, because, man, I'm thirsty.
  - mturmon 7y ago
    It should be scary. Soil liquefaction is one of the main failure modes of small structures in earthquakes. Take a look at the map for your area to know if it matters for you.
- futureastronaut 7y ago
  Parent used the correct term, a liquefecation map shows liquefecation zones.
TremendousJudge 7y ago
It sounds like a big quake could solve the housing issues
dehrmann 7y ago
You probably meant "land fill," not "landfills." Only a handful of things are actually built on landfills in the Bay Area, and all the neighborhoods you mentioned are built on fill. There are ships under Soma, though. https://news.nationalgeographic.com/2017/05/map-ships-buried-san-francisco/ https://news.nationalgeographic.com/2017/05/map-ships-buried...

benmarks 7y ago

I think the term you're looking for is "liquefaction map" - I only know this term because we're exposed to the risk here in Charleston, S.C.: https://sf.curbed.com/2019/4/15/18311670/earthquake-map-california-geological-survey-liquefaction https://sf.curbed.com/2019/4/15/18311670/earthquake-map-cali...

iamtheworstdev 7y ago
That is scary to me. Should it be scary to me? In regards to liquefaction zones and earthquakes? I mean, i recently built a fence and the moisture in the ground made me conscientious of liquefaction when tamping for my gravel and posts, how does this play out for SF in an earthquake?
- perchecriik 7y ago
  You're probably looking for the "Liquefaction Hazard Maps" page for the Bay Area: https://earthquake.usgs.gov/hazards/urban/sfbay/liquefaction/sfbay/ https://earthquake.usgs.gov/hazards/urban/sfbay/liquefaction... Disclaimer: I am a geologist, but I'm not a P.G., hence all that I say on this topic is bullshit. p.s., Does your conference have beer? If it doesn't, I'm not going. I mean, I'll be so happy when AGU rolls around, because, man, I'm thirsty.
- mturmon 7y ago
  It should be scary. Soil liquefaction is one of the main failure modes of small structures in earthquakes. Take a look at the map for your area to know if it matters for you.
futureastronaut 7y ago
Parent used the correct term, a liquefecation map shows liquefecation zones.

TremendousJudge 7y ago

It sounds like a big quake could solve the housing issues

dehrmann 7y ago

You probably meant "land fill," not "landfills." Only a handful of things are actually built on landfills in the Bay Area, and all the neighborhoods you mentioned are built on fill. There are ships under Soma, though. https://news.nationalgeographic.com/2017/05/map-ships-buried-san-francisco/ https://news.nationalgeographic.com/2017/05/map-ships-buried...