Scientists Find The Reason Behind Earth’s ‘Hum’
Most of the people might be unaware of the fact that Earth produces humming sounds on the consistent basis, still it is a proven reality. These low-frequency sounds go unnoticed by sense of hearing of the human beings. But scientists have been able to detect these sounds in past with the help of seismic instruments.
“If you played it at 10,000 times the speed, you could hear ‘white noise’ like an old TV set between channels,” Fabrice Ardhuin, a senior research scientist at the National Center for Scientific Research in Brest, France and the study’s lead author, explained to the Huffington Post.
One thing which remained unknown was the cause behind this “microseismic” activity, about which scientists have recently been able to reach some conclusions.
The conclusions are based on a recent study which was detailed in online Feb. 10, 2015 in the journal Geophysical Research Letters.
According to this publication, the mysterious vibration or ‘ring’ sound of Earth is chiefly caused by ocean waves. Waves don’t necessarily remain at the surface of an ocean, Live Science poses, they can actually exist deep down the ocean where their movement along sea floor results in a certain pressure. Our planet’s hum is ramification of the movement of the waves.
“We have made a big step in explaining this,” said Dr. Fabrice. “Now we know where this ringing comes from and the next question is: what can we do with it.”
AGU observes that one major pros of the study can be the more accurate spotting of Earthquakes.