M 7.7 - 125km NNW of Lucea, Jamaica; Jan. 28 19:10 UTC

Discussion in 'Amateur Radio News' started by VE7DXW, Jan 28, 2020.

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  1. VE7DXW

    VE7DXW XML Subscriber QRZ Page

    M 7.7 - 125km NNW of Lucea, Jamaica


    The RF-Seismograph has picked up the strong earth quake 125 km NNW of Lucea . The quake was reported by USGS at Jamaica 2020-01-28 19:10 UTC. It created a strong attenuation of the shortwave radio bands, especially on 40 m, in advance of the quake. In North America the popular 40 m net on 7.2835 MHz was severely disrupted again. The RF-Seismograph recorded the eminent quake more than 3 h earlier at 16:30 UTC! With another M6.5 aftershock at Cayman Island the bands are poor!

    upload_2020-1-28_22-22-9.png

    All the best and hopefully everyone is save!

    Alex - VE7DXW
     
    AC7DD, WX4US and KE4EZ like this.
  2. NL7W

    NL7W Premium Subscriber QRZ Page

    Really? Was it a coincidence or some semblance of a direct correlation? Have others studied this?
     
    VE7DXW likes this.
  3. N3HGB

    N3HGB Ham Member QRZ Page

    [​IMG]
     
    AC8KW, NH7RO, N7KO and 2 others like this.
  4. AG6QR

    AG6QR Premium Subscriber QRZ Page

    It sounds like you're saying you had this potentially lifesaving information well in advance of the quake and yet you withheld it and told no one until after the quake.

    Why?
     
    NH7RO, N7KO, VE7DXW and 1 other person like this.
  5. N0DZQ

    N0DZQ Ham Member QRZ Page

    And to whom would he send the information? If you cannot pin down a location neither the USGS or governments of the world would issue alerts.

    Interesting phenomenon though.
     
    VE7DXW likes this.
  6. MW1CFN

    MW1CFN Ham Member QRZ Page

    As always, lots of claims, no objective analysis.

    Tell me, why isn't it picking up quakes your newsfeed doesn't tell you about? Iceland's had a few M3+ ones recently, Solomon islands an even better one today (M6.0). Shedloads of M5 and below all over the plate margins. Turkey M6.7 on 24/1/20. And how do you distinguish between them all?

    [​IMG]
     
    Last edited: Jan 29, 2020
    NH7RO, N7KO, N4DJT and 1 other person like this.
  7. KX4O

    KX4O Ham Member QRZ Page

    Okay I'll play a little bit. During the March 2015 Virginia QSO Party those of us in Northern Virginia noticed 40m close down rather briskly in the late afternoon (times are EDT)...
    [​IMG]
    ...while the QSOs continued aplenty for other participants...
    [​IMG]
    A search for any quakes of 2.5 or better found five, one in OK at 15:32 EDT.

    Cue the Twilight Zone music.

    Of course one data point does not a hypothesis prove or disprove, but thought you all might find this interesting nonetheless.
     
    NH7RO and N7KO like this.
  8. VE7DXW

    VE7DXW XML Subscriber QRZ Page

    If you hava a far UV camera on the ISS one could see the field lines through the ion recombining action of the ozon. A.
     
  9. KJ7GHS

    KJ7GHS XML Subscriber QRZ Page

    I am not a scientist but there are 20,000 to 30,000 measured earthquakes per year! so exactly when do the RF bands recover? between 1,500 to 2,500 are above 5 magnitude? Lets see show me your card then i will guess what your card is! That does not prove you are psychic, just like seeing a spike on the band then quickly looking at the USGS earthquake map and finding an earthquake to match it to, even if it started hours before or hours afterward its a match???? but wait there have been 15 magnitude 6.0 or stronger earthquakes in the past 3 weeks!!! so where are all the disruptions!!
     
    N7KO and KX4O like this.
  10. KJ7GHS

    KJ7GHS XML Subscriber QRZ Page

    Another unprovable statement to prove the point, anyone seen a picture of earths field lines?? Even NASA has diagrams to demonstrate but not pictures. But real time pictures?? with a far UV camera?? Lets see they needed a 30 METER radio telescope to get a picture of what they believe to be a field line coming from the center of our galaxy!! Notice the statement if you have a camera not a camera was used on the ISS since that would imply actual data that would have to be shown. Here is an actual fact, 3 satellites were placed over earthquake zones to measure total electron count TEC to see if there was an energy release into the atmosphere associated with an earthquake. Scientists decided that it was not related, Large earthquake and no rise in TEC, large rise in TEC no earthquake. Again a rise in TEC means better propagation because there is an increase in electrons in the Ionosphere so with the 300 plus days we just spent in the bottom of the solar cycle earthquakes causing TEC increases would have been much easier to spot after all there are inosondes placed around the world measuring it.
     

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