Lockdowns equal less vibrations
I think it's rather lovely to note that as people stopped commuting and traveling, the Earth's surface vibrated less.
Seismologists around the world observed a lot less ambient seismic noise - meaning, the vibrations generated by cars, trains, buses and people going about their daily lives. And in the absence of all that noise, the Earth's upper crust moved a little less.
Seismologists were also able to detect smaller earthquakes and other seismic events that certain seismic stations wouldn't have registered.
However, as lockdowns ease these vibrations are returning.
Java, Indonesia recorded a 6.6 magnitude earthquake. There have been ten earthquakes recorded in this region since July 1. The latest earthquake was felt in Bali. There may be more to come.