[Rockhounds] Earth Is Literally Moving Less Now That We're All on Lockdown

[Axel Emmermann]

and we Belgians were a quite quiet people, even without lockdown... go figure 😉

Axel


-----Oorspronkelijk bericht-----
Van: Rockhounds <rockhounds-bounces at rockhounds.drizzle.com> Namens Kreigh Tomaszewski
Verzonden: donderdag 2 april 2020 2:53
Aan: Rockhounds at drizzle.com: A mailing list for rock and gem collectors <rockhounds at rockhounds.drizzle.com>
Onderwerp: [Rockhounds] Earth Is Literally Moving Less Now That We're All on Lockdown

Scientists say the “quieter” Earth during protective self-quarantine has reduced the ambient seismic noise <https://go.redirectingat.com/?id=74968X1525083&xs=1&url=https%3A%2F%2Fwww.nature.com%2Farticles%2Fd41586-020-00965-x&sref=https%3A%2F%2Fwww.popularmechanics.com%2Fscience%2Fa32007736%2Fearth-moving-less-covid-19-lockdown-seismologists%2F%3Fpre%3Dscience%252F%26prefix%3Da%26id%3D32007736%26del%3D%26variantId%3D%26post%3D%252Fearth-moving-less-covid-19-lockdown-seismologists>.
Human activity of all kinds, as we travel and gather and drive around, generates vibrations that distort measurements from finely tuned seismic instruments. In Belgium, scientists report a 30 percent reduction in that amount of ambient human noise since the COVID-19 (coronavirus) <https://www.popularmechanics.com/coronavirus/> lockdown began there.

Now, the resulting quiet means surface seismic readings are as clear as the ones scientists usually get from the same instruments buried 100 meters beneath the Earth’s surface, making measurements more more specific and easier to use and understand. Any seismic noise that falls into the same instrument range as human noise is suddenly much clearer, like if you were trying to listen to two people talking and one simply stopped.

https://www.popularmechanics.com/science/a32007736/earth-moving-less-covid-19-lockdown-seismologists/
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