Did Metallica Cause an Earthquake?
Metallica did not cause a literal earthquake. Their concerts can produce strong vibrations and low-frequency sound that are sometimes measured by nearby seismometers, but these are not tectonic events.
Concert Vibrations and Seismic Readings
Heavy bass and drums can register on sensitive equipment as microseismic signals. Similar readings occur at large sporting events and festivals. The readings are localized and far smaller than natural earthquakes.
Why the Idea Spreads Online
Videos of shaking crowds and exaggerated headlines fuel the myth. Seismologists note that concert vibrations do not indicate geological risk. For context on how vibrations are measured, see the United States Geological Survey.
