Alex Thomas – It has long been known that the Earth continually generates a low-frequency vibration signal, with attempts at recording the “hum” going back to at least 1959 while finally been conclusively proven in 1998 despite the fact that scientists have no idea what is actually causing it.

Now, for the first time ever, scientists have actually measured the hum using seismic instruments placed at the bottom of the ocean.

“The researchers first gathered data from 57 seismometer stations located in the Indian Ocean, east of Madagascar, between 2012 and 2013,” the United Kingdom’s Mirror newspaper reported. Continue reading →