Good vibrations? COVID-19 quiet time soothes Earth's seismic shakes

FILE PHOTO: A working seismograph is shown in a display about earthquakes during the Great ShakeOut Earthquake Drill at the Discovery Cube Science Center in Santa Ana, California, U.S. October 18, 2018. REUTERS/Mike Blake/File PhotoLONDON: COVID-19 lockdowns worldwide led to the longest and most pronounced reduction in human-linked seismic vibrations ever recorded, sharpening scientists' ability to hear earth's natural signals and detect earthquakes, a study found on Thursday .

"The 2020 seismic noise quiet period is the longest and most prominent global anthropogenic seismic noise reduction on record," they wrote. The work was co-led by the Royal Observatory of Belgium and five other institutions using data from 268 monitoring stations in 117 countries. Travel and tourism were all but halted, millions of schools and industries closed, and many people were confined to their homes.The relative quiet allowed scientists to"listen in" in more detail on the earth's natural vibrations, said Stephen Hicks, a seismologist at Imperial College London who co-led the work.

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