Let’s learn about humanmade seismic waves

In August 2023, some 70,000 people flocked to a stadium in Inglewood, Calif., for a Taylor Swift concert. During the show, dancing fans shook the stadium so hard that it created ground vibrations called seismic waves. During one song, those tremors released about as much energy as a minor earthquake.

Many natural events — including earthquakes and volcanic eruptions — make seismic waves. But a lot of human activity does, too. The thunderous excitement of that Taylor Swift show was just one case of humanmade vibrations.  

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Other performances have also created such “concert tremors.” The roaring crowds at NFL games can rattle Earth, too. In fact, some scientists have used the Read Entire Article