We also shouldn't forget about the Schumann resonances phenomenon which can also have a great impact on Earth's strange noices 

ch0k1

Combining the satellite data with evidence of magnetic field line movements on Earth, European geoscientists mapped the so-called Laschamps event and represented it using natural noises like the creaking of wood and the crashing of colliding rocks.

I'm curious about what this mapping procedure exactly entails.

science

Earth's Flipping Magnetic Field Heard as Sound Is an Unforgettable Horror

https://youtu.be/6Tc7XI0iUYU?feature=shared

> Combining the satellite data with evidence of magnetic field line movements on Earth, European geoscientists mapped the so-called Laschamps event and represented it using natural noises like the creaking of wood and the crashing of colliding rocks.

I'm curious about what this mapping procedure exactly entails.