[foota]

"In contrast, Earth’s surface is quivering constantly from seismic noise created by oceans and weather."

Fascinating, I wouldn't have thought these would be measurable on a large area's scale.

[est31]

This omnipresent seismic noise is also a big challenge for building terrestrial gravitational wave detectors like LIGO. Even though the noise is "only" a bunch micrometers of movement, they had to deploy multiple levels of noise suppression to be able to measure gravitational waves: https://youtu.be/j4gE-hSQm68?t=1380