sounds coming from the center of the earth?

[Humanist_Activist]

12. I imagine the Earth is creating a lot of sound, just we can't detect most of it...

at least not without a lot of effort. The interaction between the outer and inner core probably produces a lot of noise, being that the outer core is flowing around the inner core. The Mantle would be churning, slowly but surely, as a semi-solid fluid of sorts, that would create a lot of noise, then you have the crust, broken into plates that grind against each other constantly, which creates a lot of noise we do detect.