REAL WORLD EVENT DISCUSSIONS

RIDE 'EM COWBOY! ‘Strong’ evidence quake fault runs near planned skyscrapers

POSTED BY: 1KIKI
UPDATED: Saturday, July 25, 2020 09:20
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Wednesday, July 22, 2020 3:33 PM

1KIKI

Goodbye, kind world (George Monbiot) - In common with all those generations which have contemplated catastrophe, we appear to be incapable of understanding what confronts us.


https://ktla.com/news/local-news/strong-evidence-quake-fault-runs-alon
g-site-of-planned-hollywood-skyscrapers-state-says
/

‘Strong’ evidence quake fault runs along site of planned Hollywood skyscrapers, state says



State geologists have concluded there is “strong” evidence that an earthquake fault runs along the site of a controversial skyscraper development slated for Hollywood, records obtained by The Times show.

A letter from the California Geological Survey to Los Angeles city planners, obtained through a public records act request, raises new questions about the Hollywood Center development. The project calls for 46- and 35-story skyscrapers that flank the famed Capitol Records Tower, along with two buildings for low-income senior residents that would each stand 11 stories tall.

“These studies strongly support the presence of an active … fault strand entering the eastern Hollywood Center property,” the letter said.


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Wednesday, July 22, 2020 6:23 PM

BRENDA


I thought buildings have to be earthquake proof in California? I know they do in British Columbia.

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Wednesday, July 22, 2020 8:26 PM

6IXSTRINGJACK


There's no such thing as anything-proof.



Do Right, Be Right. :)

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Wednesday, July 22, 2020 9:09 PM

1KIKI

Goodbye, kind world (George Monbiot) - In common with all those generations which have contemplated catastrophe, we appear to be incapable of understanding what confronts us.


In know California has upgraded earthquake codes, I don't know what kind of survivability to how big an earthquake they might require. Or if there are some risks to some projects that just make doing them at all unfeasible.

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Wednesday, July 22, 2020 9:34 PM

1KIKI

Goodbye, kind world (George Monbiot) - In common with all those generations which have contemplated catastrophe, we appear to be incapable of understanding what confronts us.


I dug around and found a more complete version of the exact same story here:
https://news.yahoo.com/strong-evidence-quake-fault-runs-163105310.html

It says, in part
Quote:

California law generally prohibits the construction of buildings directly atop earthquake faults. A building risks catastrophic collapse if it sits on land that splits apart during an earthquake, in which one side of the fault lurches past the other.

In the magnitude 6.6 Sylmar earthquake of 1971, 80% of buildings on land where the fault ruptured the surface suffered moderate to severe damage, while only 30% of buildings constructed a little farther away suffered such damage.

A LOT of the story is devoted to disputes between the developer with some what appear to be smaller studies that say there's no fault at all, and the California Geological Survey which not only has mapped out a fault on the property, but 3 nearby faults that run directly toward it.

So there's a lot of sniping back and forth about who has the best data.

However, it does look like the CAGS might have the best data:

Quote:

Since 2014, there have been a number of scientific advances made by federal and state scientists in mapping earthquake faults.

In May, the U.S. Geological Survey and California Geological Survey released a 48-page report detailing the latest science of where the Hollywood fault sits, based on a new fault-finding technique called guided wave. It's a technique in which scientists can shoot a sound wave down a suspected surface of the fault, and instruments can verify whether it is indeed a fault.

The technique has proved to be very accurate in identifying the location of faults where they meet the surface, said former state geologist John Parrish.

In the case of the Hollywood Center, test results not only verified the earthquake fault the state mapped as going through the property in 2014, but identified three new, additional and parallel fault strands — all just east of the proposed development, said Parrish, who was chief of the California Geological Survey at the time the study was done.

"Those will go all the way through" and continue west into the Hollywood Center project parcel, Parrish said. "They just didn't run up to the curb and stop. Unfortunately, they're going to go through that piece of property."


And the developer, out of New York, has a history of bad siting and development in CA.
Quote:

One California project that didn't receive the attention of the state agency before it was built was also developed by Millennium Partners: the 58-story Millennium Tower in San Francisco, a $350-million luxury residential project that opened in 2009 but has since started to lean and sink. It will require a costly retrofit to upgrade the foundation — which originally stretched only to a layer of sand, just above a layer of clay — and extend it to bedrock.

"They built it on liquefiable lands ... but they never called us," Parrish said. "So we didn't comment."


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Thursday, July 23, 2020 12:07 AM

BRENDA


Got it Kiki. Sounds like the company should err on the side of caution but it sounds like the company won't.

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Thursday, July 23, 2020 10:54 PM

1KIKI

Goodbye, kind world (George Monbiot) - In common with all those generations which have contemplated catastrophe, we appear to be incapable of understanding what confronts us.


It's from New York.

What do THEY know about earthquakes ??!!!

HA HA !!

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Thursday, July 23, 2020 11:45 PM

BRENDA


Quote:

Originally posted by 1KIKI:
It's from New York.

What do THEY know about earthquakes ??!!!

HA HA !!



That explains everything.

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Saturday, July 25, 2020 9:20 AM

6IXSTRINGJACK


We should probably just make the skyscrapers wear masks.

That solves everything.

Do Right, Be Right. :)

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