Writing today in the journal Science, dozens of researchers from around the world show that the seismic activity from our civilization plummeted as lockdowns went into effect. This “anthropogenic seismic noise,” as seismologists call it, comes from all manner of human activities, whether that’s running factories, operating cars or trains, or even holding concerts. So starting in China originally, then in different places in Italy, and then going through Europe. And whenever lockdowns happened in different countries, we see the effect that’s up to an 80 percent reduction in the amplitude of the seismic noise in some places.” The average was about 50 percent. – Wired