posted on Dec, 21 2011 @ 10:04 AM
reply to post by StealthyKat
I doubt it's seismic or volcanic in nature. At the intensity people have been hearing this at, something like that would definitely be obvious.
I have two best-guesses: either it's atmospheric (what I suggested above), or it's manmade. It could be something as simple as an airplane. Though, I
have no idea how an airplane would cause that ringing at the end, not to mention why this seems to be a recent phenomenon, but we've gotta leave it as
Any way to confirm an electromagnetic source? I'm not sure. I'll have to think about it. I think what needs to be done is to capture as much
high-quality audio as possible, as well as location, regional weather/atmospheric conditions, and things like that, to compare.
I think it's significant that scientists have been unable to identify the source. That suggests it might be more likely atmospheric, since that would
seem to me to be much harder to pinpoint. Unless, of course, it's just a bunch of coincidentally rogue airplanes.
edit on 21-12-2011 by CLPrime
because: (no reason given)