The Earth Mysterious Song has been recorded finally

We all know that earth produces a sound which looks as if its singing Like a permanent undertone to the dissonance of busy urban centers or nature’s own harmonious melodies, the Earth itself hums a low-frequency tune. The permanent drone, which has baffled scientists for a while now, comes from continuous vibrations too faint to be detected without a specialized instrument.
Now, for the first time ever, scientists have captured Earth’s hum — its “song,” if you will. They measured the constant humming from from the Indian Ocean seafloor using special spherical Ocean-Bottom Seismometers (OCBs).
“It’s like taking a piano and slamming all the keys at the same time,” Spahr Webb, a professor at Columbia’s Lamont-Doherty Earth Observatory not associated with the study, told National Geographic. “Except they’re not nice harmonics. They’re oddball frequencies.”
From September 2012 to November 2013, the researchers deployed 57 of these OCBs, and measured several frequencies between 2.9 and 4.5 millihertz. That’s 10,000 times lower than the average human hearing threshold, the researchers noted in their study
Source:(http://www.olubamznews.com/2017/12/the-earth-mysterious-song-has-been.html)