Latest quakes in the Americas

  1. davenn

    davenn 3,373
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    hi gang

    3 x M6+ events within 24 hrs down the west coast regions of the Americas
    as recorded on my system here in Australia

    [​IMG]

    firstly from top to bottom
    a M 6.4, coastal central Chile
    then the M 6.0, Napa Valley area California, USA
    then a M 6.9, within the Andes Mountains of central Peru

    The last one, altho the largest was relatively small in amplitude because of its
    101 km depth - this results in a lack of significant surface waves

    cheers
    Dave
     

    Attached Files:

    Last edited by a moderator: Aug 25, 2014
  2. jcsd
    Earth sciences news on Phys.org
  3. berkeman

    Staff: Mentor

    The Napa quake just missed me by about 30 miles. No deaths, but several hundred injuries and lots of broken water and gas distribution pipes. Good local response by EMS, Fire, PD, and other emergency agencies. :smile:
     
  4. davenn

    davenn 3,373
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    wow Mike
    that's a little too close for comfort

    I haven't been up through the Napa Valley area since 2006

    Dave
     
  5. berkeman

    Staff: Mentor

    From 96.5 KOIT San Francisco news station. Now that's creative! :smile:
     

    Attached Files:

  6. davenn

    davenn 3,373
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    indeed :)
    making the best of a bad situation

    D
     
  7. Bobbywhy

    Bobbywhy 1,908
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    Hi Dave!

    Re: your graphs
    1. Is the first one at ~2320 UTC on 24 August the one recorded off Valparaiso, Chile?
    2. Did you receive and record anything on 17 August from Southwestern Iran?
    3. Do you know of any theory connecting lunar tidal forces with earthquake activity?

    Cheers, Bobbywhy
    p.s. Congratulations! Love your real data!
     
  8. davenn

    davenn 3,373
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    hi Bobbywhy

    1) a bit NNE of Valparaiso ~ 50km and inland from the coast ~ 10km or so

    2) The M 6.2, Yes I did but pretty low amplitude

    3) Yes, there's a few theories floating around. Some with good scientific grounding others fall into the woowoo science realm haha

    my online real time seismo's

    Thanks
    Dave
     
  9. Dotini

    Dotini 665
    Gold Member

  10. Most likely just power line arcs. They can cascade for a pretty good light show in the right conditions.

    https://www.youtube.com/watch?v=NYCHBI66izs

    This one was lightning induced.
     
    Last edited: Aug 27, 2014
  11. davenn

    davenn 3,373
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    Yup would have to agree with that comment

    in that other link, the press report was pretty unscientific

    Dave
     
  12. Dotini

    Dotini 665
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  13. davenn

    davenn 3,373
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    I'm not saying the possibility of earthquake generated lights is a myth

    I'm saying that with the way that was reported in that article without any scientific investigation
    NSASPOOK's explanation is substantially more likely

    Dave
     
  14. I don't think it's a myth but I think most are just power arcs instead of some strange type of geological earth stress discharge.

    Other earthquake lights type events.
    Major substation fault.
    https://www.youtube.com/watch?v=UIdjfDdYs9w

    https://www.youtube.com/watch?v=y196J86YrRU

    https://www.youtube.com/watch?v=KMunTcLvSzE

    https://www.youtube.com/watch?v=VBwXR_It9kw
     
  15. davenn

    davenn 3,373
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    Yup ... still agree with you
    and none of those videos shows anything that couldn't be explained by arcing power lines ... transformer explosions etc caused by earthquakes or other electrical faults


    cheers
    Dave
     
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