Geologist: West Los Angeles Fault Line Might Slice All the Way Down to the Earth's Mantle

  • metta

    Posts: 39143

    Jun 30, 2015 11:01 PM GMT
    Geologist: West LA Fault Line Might Slice All the Way Down to the Earth's Mantle

    http://la.curbed.com/archives/2015/06/newport_inglewood_fault_deep.php
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    Jul 01, 2015 9:08 AM GMT
    He might be right, and he might be one of the last survivors of the 2012 saga trying to bring back the "reality" that we were supposed to face a few years ago.

  • roadbikeRob

    Posts: 14360

    Jul 01, 2015 12:10 PM GMT
    I read this and other related articles in LA Curbed and the online university paper from UCSB. Very interesting and very worrying indeed. Never mind that particular fault, worry about the more potentially deadly Hollywood Fault.icon_surprised.gif
  • roadbikeRob

    Posts: 14360

    Jul 01, 2015 1:50 PM GMT
    TomSOCAL saidThat is a very interesting article, that blue schist rock would not be expected. Two other faults of concern are,

    1. The Ventura Fault. Runs from Ventura to San Bernardino. Could produce a 8.0 Quake which would destroy downtown Ventura, with tsunamis ! It would produce 32 to 150 times the amount of energy released as the Northridge Quake !

    http://www.latimes.com/local/california/la-me-ventura-fault-20150420-story.html#page=1

    Quote ---- A huge quake on the Ventura fault could create a tsunami that would begin "in the Santa Barbara Channel area, and would affect the coastline … of Santa Barbara, Carpinteria, down through the Santa Monica area and further south," said Tom Jordan, director of the Southern California Earthquake Center and USC earth sciences professor, who was not involved in the research.

    Scientists from Harvard University, USC, the U.S. Geological Survey and San Diego State used underground oil data, cutting-edge earth imaging and research on ancient beach mapping to form their conclusions, which were published last year in the Bulletin of the Seismological Society of America.icon_twisted.gif

    One key finding is that the fault now appears to be connected to a network of others that stretch from the Santa Barbara coast and into eastern Ventura County.icon_evil.gif

    A major earthquake on the Ventura fault could then cause shaking along nearby faults to the east, along the foothill suburbs of Los Angeles and San Bernardino counties.icon_twisted.gif

    2. The fault off the central coast from San Luis Obispo down to off the coast of Lompoc / Solvang. It produced a 7+ quake in the early 1900's. If it went off again it could produce damage to the Diablo Canyon nuke plant off of San Luis Obispo.

    It could even produce a meltdown. The Chumash Indians and others have called for the plant to shut down. I agree.

    Nuke plants are safer in areas w/o quakes, like Buckeye, AZ outside of Phoenix where the world's largest nuke plant is located.

    Dawn Dyer of Ventura I wonder what she would do if all of a sudden she could no longer collect her $1800 monthly rents in Ventura with that quake ???? What do we do with the rich republicans who run ventura county, taking rent money?

    c2.jpg

    DYER AND SHEEHAN. VENTURA, CA. THE CENTER OF THE KNOWN WORLD. TAKING YOUR MONEY ALL DAY, ALL NIGHT, EARTHQUAKES PERMITTING. YA DON'T MAKE 3 TIMES THE MONTHLY RENT? TOUGH. YOU WANT INTO OUR COUNTY AND THAT'S WHAT IT TAKES.

    photo.jpg
    Actually Arizona is really no safer for nuclear power plants than Southern California. Most of the western states have numerous fault zones crisscrossing them and most if not all of them are potentially active. Wherever you see mountain ranges and sharply hilly topography, think fault lines. It is the exact same situation around the entire Pacific basin. Los Angeles, San Francisco, and Anchorage are not alone in this potentially disturbing dilemma. Other cities like the Seattle-Tacoma Metro Area, Vancouver, Tokyo, Osaka, Seoul, Hong Kong, Taipei, Wellington, Auckland, Santiago, Lima, Quito, Managua, and Acapulco are in similar danger zones with hidden faults both strike-slip and thrust crisscrossing all over the damned place. The two worst off are Guadalajara and Mexico City since they are both situated in high valleys that were mostly beds of brackish lakes causing a deadly process known as liquifaction during a violent temblor. Other North American cities that in high risk seismic zones are Chihuahua, Hermosillo, Torreon, Tucson, Phoenix, Las Vegas, Sacramento, Salt Lake City, Provo, Boise, Spokane, Portland, and Eugene. Yes this also includes you folks in both San Diego and Tijuana, both these locales are not islands of geologic stability in a volatile region.
  • tazzari

    Posts: 2937

    Jul 01, 2015 4:50 PM GMT
    metta8 saidGeologist: West LA Fault Line Might Slice All the Way Down to the Earth's Mantle

    http://la.curbed.com/archives/2015/06/newport_inglewood_fault_deep.php


    Probably caused by marriage equality?
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    Jul 01, 2015 5:07 PM GMT
    "Over a third of the samples indicated high levels of "primordial" helium-3,"

    Thankfully, it's not methane or I would be certain to be blamed for it.
  • roadbikeRob

    Posts: 14360

    Jul 03, 2015 6:16 PM GMT
    TomSOCAL said
    roadbikeRob saidActually Arizona is really no safer for nuclear power plants than Southern California. Most of the western states have numerous fault zones crisscrossing them and most if not all of them are potentially active. Wherever you see mountain ranges and sharply hilly topography, think fault lines. It is the exact same situation around the entire Pacific basin. Los Angeles, San Francisco, and Anchorage are not alone in this potentially disturbing dilemma. Other cities like the Seattle-Tacoma Metro Area, Vancouver, Tokyo, Osaka, Seoul, Hong Kong, Taipei, Wellington, Auckland, Santiago, Lima, Quito, Managua, and Acapulco are in similar danger zones with hidden faults both strike-slip and thrust crisscrossing all over the damned place. The two worst off are Guadalajara and Mexico City since they are both situated in high valleys that were mostly beds of brackish lakes causing a deadly process known as liquifaction during a violent temblor. Other North American cities that in high risk seismic zones are Chihuahua, Hermosillo, Torreon, Tucson, Phoenix, Las Vegas, Sacramento, Salt Lake City, Provo, Boise, Spokane, Portland, and Eugene. Yes this also includes you folks in both San Diego and Tijuana, both these locales are not islands of geologic stability in a volatile region.


    Robb ---- Your list of cities is quite accurate, except Arizona is quite safe. The North American plate, in MOST areas, is pretty much done with deforming itself.

    There are few exceptions in AZ that are not safe - the fault north of Sedona and the Flagstaff area, and, also near Yuma.

    Where that power plant is would see minimal ground shaking from either of these areas.

    A California mega quake would cause some shaking, but far enough away to not cause any damage.

    The biggest threat to this large nuke plant would be Terrorism blocking off water canals from the Colorado River to the plant.

    Arizona is mostly safe, the Flagstaff area quakes should not technically ever exceed a 6.0 magnitude.

    There is a slight risk of a quake in Albuquerque, but I'm not sure of the magnitude.

    The four corners region is very safe.

    Colorado - NW Colorado is not safe, a quake decades ago was strong enough to be felt in Denver, but again, far enough away to not cause any damage.

    Here are all of the maps for the entire US

    HOWEVER - the map does NOT include the potential damage to Ventura County from the Ventura Fault. These maps are ultimately updated.

    They are scaled to different percentages and risk figures I don't understand what all of this means. The "20" lines in West Phoenix (where the nuke plant is) and the Four Corners area indicates these are very safe areas.

    5hzSA.wus.2pc50.pdf

    http://earthquake.usgs.gov/hazards/products/conterminous/2002/maps/
    It is very sad that the Giant Tea Party State of Texas is not geologically unstable especially the I-35 corridor from Laredo to Dallas- Fort Worth. I would love to have a giant deep fault line run right through the hearts of both Austin and Waco. icon_twisted.gif
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    Jul 04, 2015 1:57 AM GMT
    roadbikeRob said
    It is very sad that the Giant Tea Party State of Texas is not geologically unstable especially the I-35 corridor from Laredo to Dallas- Fort Worth. I would love to have a giant deep fault line run right through the hearts of both Austin and Waco. icon_twisted.gif

    I wouldn't worry - if they keep fracking like they are they'll create enough moderate earthquakes there that are destructive and disruptive with a high frequency, to scare away business & people.

    California, on the other hand, has been building on sand for decades. And if global warming continues it will become unlivable anyway (as Texas is also becoming). Time to flee California before it really does fall into the sea. I for one don't want the bill for all the damage when the "Big One" hits.