Lamb shockwaves travel around the world at speeds of Mach 10 after the quake in Turkey

Discussion in 'Amateur Radio News' started by VE7DXW, Feb 7, 2023.

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  1. VE7DXW

    VE7DXW Ham Member QRZ Page

    The devastating event of the earthquakes in Turkey is very alarming and it needs to be scrutinized at what can be done to detect these events before they occur.

    The RF-Seismograph is a community funded science project by experiment .com and, providing accurate propagation for the Pacific North West at

    One aspect that is often overlooked is the effect of the travelling ionospheric shock waves (lamb waves) that emanate from the event. Since shortwave radio waves need the ionosphere to be able to communicate, the extremely fast (Mach 10) shock-waves will race around the planet and will be detectable via short wave radio as a change of propagation and noise level.

    To highlight the change, the additional energy made we have released the data one day before the event, with a total of quake energy output of only 20.1 TJ (Tera Jules) for Feb. 5th. Notice how flat the recorded noise lines are especially between 00:00 UTC to 16:00 UTC (except for the 20 m band)


    As the quakes started (see below) with the M7.8 at 01:17 UTC, it was followed by a M6.7 11 minutes later. The delay from the actual event, which occurred 10.000 km away, was 43 min. When it shows up at the RF-Seismograph and to actually prove that the event recorded was the quake from Turkey, the second peak exactly followed 11 min later as a lower event, because it was only a M6.7 quake. The measurement becomes un-reliable after, because the shock-wave races around the planet. Additionally the strong aftershocks add to the dispersing of the ionosphere. A total energy disbursal was 17500 TJ (an almost 1000 fold increase) of quake energy for the day, mostly by the unrest in Turkey.


    The RF-Seismograph currently only has one location. Our second location is in New Port Oregon and it will back on the air in a few weeks. A third location will be in the east of Kelowna starting in the spring 2023.

    If you are interested to host a RF-Seismograph please join ‘s user group at You will also receive our daily “propagation vs. USGS detected quakes daily report issuede after 00:00 UTC, which are optional.

    Science is always more interesting when viewed with an open mind.

    Thank you very much;

    Alex Schwarz

    Principle investigator of the RF-Seismograph

    (which is based on a shortwave radio and a raspberry pi)
    AC7DD, W4HMB, KE7DRT and 3 others like this.
  2. N4EOJ

    N4EOJ Ham Member QRZ Page

    heres your answer: HAARP weapon was used to cause this earthquake
    KE7DRT and PU2OZT like this.
  3. W3AMT

    W3AMT Ham Member QRZ Page

    No global warming!
    N7BWB, WA9WSJ, AK5B and 1 other person like this.
  4. W3AMT

    W3AMT Ham Member QRZ Page

    Very interesting on the speed of the shock waves and effect on propagtion.
    WJ2L likes this.
  5. N1IPU

    N1IPU Ham Member QRZ Page

    Turn off your tv and read a book. This is not a movie.
    N7BWB, VA2AKG, K3WGI and 3 others like this.
  6. WN1MB

    WN1MB Ham Member QRZ Page

    Do tell us all how you provide propagation. Please.

    We in New England would like some propagation, too.
    AK5B and PU2OZT like this.
  7. KA0HCP

    KA0HCP XML Subscriber QRZ Page

    Whacko Conspiracy Theorists Unite!

    Tin foil hats for everyone!
    KD2MIC, KF0GKC, N7BWB and 2 others like this.
  8. VK5OHR

    VK5OHR Ham Member QRZ Page

    I'm not sure how an atmospheric compression wave can have any influence over an electromagnetic wave. Maybe I have missed something here...
    K5VG and AK5B like this.
  9. KA1DVC

    KA1DVC Ham Member QRZ Page

    Interesting. Never consider this effect. Thanks for sharing

  10. K5TED

    K5TED Ham Member QRZ Page

  11. KC3RLG

    KC3RLG Ham Member QRZ Page

    Why was the 20m band especially affected? Presumably the earthquake releases some EM radiation at that frequency?
  12. NL7XM

    NL7XM Premium Subscriber QRZ Page

    AK5B and WN1MB like this.
  13. PA0MHS

    PA0MHS Ham Member QRZ Page

    Maybe you should read up about lamb waves. They're not atmospheric. These are waves travelling through plates (tectonics plates in this case) or spheres (the earth).

    And compression of solid material can result in electricity. Take a look at an ligher with a piezo ingition. Piezo effect also happens in MLCC capacitors (microphonic effect). Take an oscilloscope, disconnect the probes, set it to the highest sensitivity and tap on the BNC connector of an input or even just on the top of the case. Then watch the trace on the screen.

    So if that is already easy to demonstrate, then why is it so hard to accept that a massive compression involving Terajoules of energy can release electric fields from the tectonic plates at such a scale that they influence the ionosphere?
    WJ2L, W2NDB, K7HEP and 2 others like this.
  14. N1IPU

    N1IPU Ham Member QRZ Page

    Nice to know some are thinking and understand the science. I think many cannot comprehend much past the basics like Superbowl Sunday and TV show themes.
    WJ2L, WA9WSJ, W4HMB and 3 others like this.
  15. VE3WI

    VE3WI Premium Subscriber QRZ Page

    Reference in Post #10 says Lamb waves exist in the atmosphere, but propagate at sonic velocity. OP please post a reference explaining how supersonic Lamb waves are formed & why they only propagate at Mach 10 & not some other velocity. Supplemental question: can we hear their sonic booms on the ground?

    Dave, VE3WI
    WJ2L, W4HM and KA0HCP like this.

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