NOAA’s Ionosonde and RF-Seismograph detect Earthquakes off Vancouver Island

Discussion in 'Amateur Radio News' started by VE7DXW, Apr 26, 2019.

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  1. VE7DXW

    VE7DXW XML Subscriber QRZ Page

    There were actually two earthquakes (M5.4 & M4.3) and both of them registered on both instruments, showing a change in the Ionosphere 90 min before the quake released!

    Our measurements over the past 4 years have shown that the best results for detecting earthquakes this way is to be about 800 km (500 miles) away from the epicenter of the quake. So in ideal conditions, the station measuring will have the dome of the field lines that affect the ionosphere just on the horizon. But in this case we got lucky and both saw the change.

    For more info please go to this article published by “Scientific American”.

    During the 4 years since the RF-Seismograph has been running we have collected over 12Mbytes of data on the 6 bands we are monitoring. During this time we have experienced 180 M6+ quakes and the RF-Seismograph has recorded RF-Signatures of about 70% of them.

    Now that we have a link between earthquakes and Ionosondes we would like to offer our data to organizations that do run Ionosondes and see how many of the quakes we recorded were also recorded by their instruments. If you are interested in collaborating with us, please post here.


    Details about the measured graph above:

    RF-Seismograph - Lynn Valley, BC
    • detects a disturbance starting at 19:00 UTC,
    • measures a peak on 80 m when the first quake releases
    • measures a peak on 40m before second quake
    Ionosonde – Pt. Arguello, CA
    • detects a drop in the foF2 frequency at 19:00 UTC
    • measures prolonged peak during second quake
    • measures prolonged peak during second quake

    Manny thanks to Edgar Kraut (W6GSE) for sending us the information on the Ionosonde and the graph showing the two earthquakes.

    All the best and 73;

    The MDSR and RF-Seismograph Team
    K7YB, KO6KL, AF9US and 1 other person like this.
  2. MW1CFN

    MW1CFN Ham Member QRZ Page

    This continues to be very interesting, but I can't see what the objective measurement of change is. There's plenty of graph eyeballing going on, but that isn't enough in the long term - or for a journal.
    K9ASE likes this.
  3. KL7KN

    KL7KN Ham Member QRZ Page

    VE7DXW likes this.
  4. VE7DXW

    VE7DXW XML Subscriber QRZ Page

    The raw data is available through our group in the files section

    or as a zip file from Dropbox:

    All the best and thank you for the effort!

    Alex - VE7DXW
    KL7KN likes this.
  5. AF7TI

    AF7TI XML Subscriber QRZ Page

    Hi MDSR and RF-Seismograph Team:

    Using GIRO is probably the most comprehensive and efficient way to get the desired ionosphere data.

    1. Get a list of active stations for JSON for tabular
    2. For each station query GIRO for foF2 data in time range using interface
    example for a station in Idaho IF843:

    Good luck with the research,
    Matt AF7TI
    VE7DXW likes this.
  6. VE7DXW

    VE7DXW XML Subscriber QRZ Page

    Hi Matt;

    Thank you for the link and I have done some research on how to query the data and how to get the data back. I think this actually might be an idea for an upgrade of the RF-Seismograph!

    The only issue with the data is that it is only taking a reading every 15 min. This is too long to see the peaks of the most quakes.

  7. KA0HCP

    KA0HCP XML Subscriber QRZ Page

    You are still making claims with absolutely no scientific basis. You have not even defined an 'RF Seisimic event" so that it can be searched for in your data. What are the specific characteristics you claim? (For that matter, you have not defined an "earthquake event" which you are claiming to detect). "Everybody knows what an earthquake is" does not cut it with research.

    -Recruit a degreed mathematician, physicist or statistician with research credentials to study and define your data.
    -Recruit a degreed geophysicist with research credentials to define and study the seismology data.
    N7KO and N0TZU like this.
  8. KS0E

    KS0E Ham Member QRZ Page

    I continue to be baffled by the fact that QRZ seems to treat this as news, and put it on the front page. Leave this in the forums. It is not news, and as has been (helpfully) pointed out over and over in each of these articles, this project is in a primordial stage and needs some actual scientific analysis. Without it, the "announcements" are nothing more than wishful thinking.
    N0TZU and KA0HCP like this.
  9. W1LWT

    W1LWT Ham Member QRZ Page

    HEY THIS IS GREAT REAL NEWS..pass on more information so beginners can start a projects to get started. To bad there's negative individauls on found something now its time to share with ohters to help in anyway they can....
    VE7DXW likes this.
  10. N7KO

    N7KO Ham Member QRZ Page

    My Cat starts shaking and tapping her tail a day before a earth quake hits, but I have not been able to look far enough into her eyes to figure out where the earth quake will happen.

    She is a shy Cat and starts to blush when I stare into those big yellow eyes.

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