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95597 |
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Date: January 13, 2022 at 20:35:43
From: pamela, [DNS_Address]
Subject: Scientists Have Just Announced The San Andreas Fault Is About To Do So |
URL: https://youtu.be/1cJgSt-6A3o |
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Scientists Have Just Announced The San Andreas Fault Is
About To Do Something Massive
posted today, Jan 13th
(concerning for me as well as I continue to have the Juan
de Fuca/San ANDREAS FAULT symptoms especially lately. )
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[95598] [95600] [95602] [95603] [95601] |
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95598 |
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Date: January 14, 2022 at 09:48:29
From: ao, [DNS_Address]
Subject: Re: Scientists Have Just Announced The San Andreas Fault Is About To... |
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What scientists? Who, where? Do you have a link to some actual information?
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Responses:
[95600] [95602] [95603] [95601] |
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Date: January 14, 2022 at 10:19:23
From: pamela, [DNS_Address]
Subject: Re: Scientists Have Just Announced The San Andreas Fault Is About... |
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Actually I think the headline is a dud. Why don't video
makers make reference links? Posted when tired my bad.
THis is what they're refering to
https://losalamosreporter.com/2021/10/12/lanl-san-
andreas-fault-study-taps-new-vein-in-earthquake-
research/
LANL: San Andreas Fault Study Taps New Vein In
Earthquake Research
Scientists study the opening and closing of tiny cracks
in and around the San Andreas Fault, a part of which is
shown here, to determine the elasticity of the rock.
The opening and closing of tiny cracks are driven by
tidal forces. Photo Courtesy Dreamstime
LANL NEWS RELEASE
Recent research into the way cracks in the earth’s
crust open and close along the San Andreas Fault has
yielded a new way of studying earthquake behavior that
bridges an important gap between laboratory experiments
and earth observations, demonstrating a new way to
study upper crustal behavior.
“The amount of this softening or stiffening tells us
something about the material damage along the San
Andreas Fault and may also tell us something about the
earthquake cycle,” said Andrew Delorey, a scientist at
Los Alamos National Laboratory. “The work opens the
possibility for field studies of material behavior that
have previously been studied only in laboratory
research.”
Delorey led the team of researchers who used 17 years
of seismic data to determine patterns in the rocks’
responses to tidal forces. They measured the velocity
of seismic waves and the stiffness of fractured rock.
Rock is softer when the earth stretches and stiffer
when the earth compresses, and seismic waves travel
more quickly when the earth is compressed than when
extended. That velocity difference increases closer to
the fault zone. This strongly suggests increased damage
closer to the fault within the footprint of the seismic
array. The opening and closing of the cracks convey to
scientists elastic properties in the rock and may also
be related to the stress conditions.
“We have ideas as to why we think this happens, but
it’s not well understood what it means physically,”
said Delorey, adding that unlike previous predictions
or smaller studies, this research demonstrates a new
way to study upper crustal behavior.
Additionally, they found that seismic velocities were
different, at the same strain level, depending on
whether strain was extending or compressing. Very close
to the fault, seismic velocities were higher when
strain was extending, while the opposite was true away
from the fault. The scientists detected nonlinear
elastic behavior along the San Andreas Fault and
constrained key features in the stress-strain and
strain-modulus relationships similar to laboratory
methods using a pump-probe analysis.
By measuring nonlinear elasticity in this way, they
bridged a crucial gap between laboratory and earth
experiments. This approach opens up the possibility for
detecting behavior associated with stress, pore
pressure, permeability, and material failure in the
earth in a manner already performed in the laboratory.
This study is crucial to a much longer investigation
whose goal is to understand the current stress
conditions on a fault, or in a fluid reservoir, Delorey
said.
Paper: “Probing the Damage Zone at Parkfield,” by
Andrew Delorey, Robert A. Guyer, Gotz, H. R. Bokelmann
and Paul Johnson, in American Geophysical Union:
Advancing Earth and Space Science.
https://agupubs.onlinelibrary.wiley.com/doi/10.1029/202
1GL093518
Funding: Department of Energy, Office of Science,
Office of Basic Energy Sciences, Chemical Sciences,
Geosciences, and Biosciences Division Grant, the
Department of Meteorology and Geophysics at the
University of Vienna, which hosted a scientist during
this study.
About Los Alamos National Laboratory
Los Alamos National Laboratory, a multidisciplinary
research institution engaged in strategic science on
behalf of national security, is managed by Triad, a
public service oriented, national security science
organization equally owned by its three founding
members: Battelle Memorial Institute (Battelle), the
Texas A&M University System (TAMUS), and the Regents of
the University of California (UC) for the Department of
Energy’s National Nuclear Security Administration.
Los Alamos enhances national security by ensuring the
safety and reliability of the U.S. nuclear stockpile,
developing technologies to reduce threats from weapons
of mass destruction, and solving problems related to
energy, environment, infrastructure, health, and global
security concerns.
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Date: January 14, 2022 at 11:21:19
From: JTRIV, [DNS_Address]
Subject: Re: Scientists Have Just Announced The San Andreas Fault Is About... |
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Hi pamela,
Since it was a short video I watched it and the
information in it seemed to be sound. The problem is
with YouTube content creators using what is called
"clickbait" subjects so people will click and watch.
"Clickbait is a text or a thumbnail link that is
designed to attract attention and to entice users to
follow that link and read, view, or listen to the linked
piece of online content, being typically deceptive,
sensationalized, or otherwise misleading."
If a link with text had been provided most of us would
have realized we had heard the info but the clickbait
title got people to watch.
Don't feel bad, I've wasted a lot of time on clickbait
titles. But I tend to note the source and ignore them in
the future.
Cheers
Jim
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95603 |
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Date: January 14, 2022 at 11:42:49
From: pamela, [DNS_Address]
Subject: Re: Scientists Have Just Announced The San Andreas Fault Is About... |
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Yeah I know what clickbate is, lol. Usually catch it, but
I've been sleep deprived for over a month, thks.
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95601 |
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Date: January 14, 2022 at 10:38:04
From: ao, [DNS_Address]
Subject: Re: Scientists Have Just Announced The San Andreas Fault Is About... |
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Hey, thanks for that. What a difference a headline makes, eh?
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