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  1. 1 point
    Hi Marcel , Thanks a lot. Your reply really gave an insight into the parameters that needs to be taken into account.
  2. 1 point
    Hi to everyone, I'm new to this forum but not this site. I have been interested in our star and the effects of the sun on the earth. I have asked other people if large CME's and/or earth facing Coronal Holes and elevated solar winds have an impact on Earthquakes here on Earth. I've been told no but monitoring this for over a year I believe their is an impact on Earthquakes. The latest Coronal hole (earth facing) that occurred before Thanksgiving on Thursday thru Saturday, I saw an increase in earthquakes starting on Sunday and then slowing down on Tuesday. Some of the quakes were over 6.0. I'm not sure if it's the heat from the solar winds that heat up the center of the earth or the plasma or the increase of particles that interact with the earth but their is a definite correlation with these events. I wanted some feedback if I am correct and if not why. I would also gather data to show why I believe this to be a fact. Thanks and this is a great site. Paul E
  3. 1 point
    I'm not calling anyone names. I am just quoting a tweet of a very respected solar scientist. I even showed my support in my previous post, as I believe that if someone can prove that earthquakes and solar activity are related, the discovery could well be worthy of a Nobel Prize in my opinion. What I like to see is an explanation that explains exactly how space weather triggers earthquakes. What is it that space weather does to trigger these quakes. I don't just want to hear theories, it has to be supported by evidence. There isn't any evidence yet, only people correlating quakes with solar events. But solar events are common and so are quakes so you are bound to hit the jackpot a couple of times, but that doesn't proof they are related? Yes space weather influences our magnetic field but what does that have to do with plate tectonics? Any evidence I have seen thus far seem to be more based on random luck of random solar events occurring at the same time as an earthquake. Also, earthquakes remain a common occurrence even during solar minimum. According to the logic of this theory, shouldn't there be a significant decrease of earthquakes during solar minimum? Or less earthquakes during a weak solar maximum than during a strong solar maximum?
  4. 1 point
    Hello Paul, There is currently no solid verified scientific evidence that link space weather and earthquake activity in any way. There are indeed certain communities that do their own research and aim to link the two together or claim to have done that but this is what I'd call ''back yard'' science which should be approached with a healthy dose of common sense. There is a tweet from very respected solar scientist Karl Battams that I always remember when these discussion pop up. It's too funny not to share: Everyone is however of course entitled to their opinion and if you manage to prove a correlation between solar activity and earthquake activity you might win a Nobel Prize. Who knows!
  5. 1 point
    Hi Marcel and Brian! Great to see you are interested in this. My first analysis shows that the Samsung Note 5 is superior to the iPhone 6s. They use two different magnetometer chips and clearly the Samsung chip is far more stable and generates fewer data artifacts. Also the iPhone magnetometer is much more temperature sensitive over a range from 40 to 80 F. In terms of geomagnetic storm detectability, I still do not have good statistics on events stronger then Kp=5 so it is not clear that I have reached a sensitivity threshold for detecting storms yet. The data so far for conditions between 1 < Kp < 5 the performance of both platforms seems to be consistent with noise ,dominated not by the ADC limit at +/- 0.16 nT, but by uncontrollable systematic drifts and artifacts for which it is hard to create a measurement protocol that reduces their effects. Sadly, I missed the big September Storm, and the statistics are not good for another major event with Kp>6 or 7 this late in the sunspot cycle. I plan to publish these results in a journal at some point but it would really be great to get one actual storm under my belt to prove the concept!!! To the specific points you raised, Marcel, being in a remote location would be ideal of course, but so long as you are 5 meters from any obvious surface metals in buildings or other em interference, it does not seem to matter, but of course more will be known as I get better observations. Brian, It is not obvious to me that smartphones cannot detect changes, but in the next month I will be doing some absolute calibration measurements here at NASA/Goddard to see what the dB/dT threshold is for these chips. Of course it is the change in B over time that correlates with Kp not just static measurements of Bz. With the absolute calibration against professional-grade magnetometers I should be able to pretty well quantify the performance of the magnetometer chips in these two platforms.
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