This morning's CA earthquake
- Thread starter Tom
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Tom and Margi
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I'm really surprised there was so little liquefaction since the quake occurred so close to the mud flats of San Pablo Bay.
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Tom
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Aye Margi, nobody has mentioned liquefaction (yet). This morning, a couple of us were talking about the marina district of San Francisco during the Loma Prieta quake; The district was built on 'reclaimed' land (aka dirt fill), and it liquified during that quake.
In Vallejo
On a less technically interesting basis, 7 older buildings in vallejo were red-tagged as likely to collapse/in-habitable. Probably brick and mortar related. Surrounding streets have been closed off.
"Thirty commercial buildings in Vallejo have been yellow-tagged for partial specified use, including clean-up," city officials said.
There were 13 water main breaks in the city but water has been restored to all residents.
Vallejo residents can follow the city's post-earthquake status updates on Vallejo's Facebook and Nextdoor feeds and at www.ci.vallejo.ca.us/EarthquakeStatus.
Admin edit: We understand the desire to quote the "official" word, but please read our forum Rules re copyright rules and succinct quoting. The remainder of your message was deleted.
On a less technically interesting basis, 7 older buildings in vallejo were red-tagged as likely to collapse/in-habitable. Probably brick and mortar related. Surrounding streets have been closed off.
"Thirty commercial buildings in Vallejo have been yellow-tagged for partial specified use, including clean-up," city officials said.
There were 13 water main breaks in the city but water has been restored to all residents.
Vallejo residents can follow the city's post-earthquake status updates on Vallejo's Facebook and Nextdoor feeds and at www.ci.vallejo.ca.us/EarthquakeStatus.
Admin edit: We understand the desire to quote the "official" word, but please read our forum Rules re copyright rules and succinct quoting. The remainder of your message was deleted.
Larry N.
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That's quite an article, Ned -- thanks.
Tom and Margi
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Ned said:
Reading the article you linked is what got me thinking about liquefaction, Ned. The article said " perfect scenario for liquefaction" yet I had not heard of that happening in this instance. We lived in Sonoma County from 1976 to 1989 (three years in Petaluma and the rest in Sebastopol). Liquefaction was a subject of concern for the emergency operation center planners in Petaluma. I was also surprised when Foster City didn't liquefy during the Loma Prieta quake.
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Tom
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Let me understand ... having read the article (I didn't), when liquifaction comes up, we're referred to the article. Then we discover that liquifaction is not a factor in this case, and are given the reason for lack of liquifaction. Why couldn't we say that up front ???
A simple search in the browser for liquifaction in the article revealed the statement. It took all of about 30 seconds 
I gave the article reference before anyone mentioned liquifaction. That's only a minor point, the rest of the article is worth reading if you want to understand the origins of the quake.
I gave the article reference before anyone mentioned liquifaction. That's only a minor point, the rest of the article is worth reading if you want to understand the origins of the quake.
Molaker
Well-known member
What!!!! Another earthquake?!! Oh, I read the subject line today and thought we'd had another. ;D
T
TonyDtorch
Guest
if you want to keep track of recent earthquakes here's this.....
http://www.data.scec.org/recenteqs/
http://www.data.scec.org/recenteqs/
