"The sound waves that people were experiencing nearby and feeling something through their bodies, that's the equivalent to what our seismographs feel,"
"We're picking up the ground motion, we're not picking up the sound from the air. So you've got speakers on the ground pumping out vibrations and that gets transmitted through the ground, but also the crowd jumping up and down is feeding energy into the ground."
"If everyone's sort of bouncing in unison, it tends to amplify the signal so we can pick it up a little bit better. Whereas, if it's sort of just general crowd motion, like even at the grand final at the MCG [Melbourne Cricket Ground], we can still pick that up."
AC/DC's Australian tour kickoff in Melbourne registered on a seismograph in Richmond, measuring ground motion in the 2–5 hertz range about two miles from Melbourne Cricket Ground. The vibrations originated from powerful speakers and from the crowd jumping, which transmitted energy through the ground. When large numbers of attendees bounced in unison, the ground motion amplified and became more easily detectable. Residents up to five miles away reported hearing the concert. Taylor Swift's 2024 shows at the same venue produced even stronger seismic signals. AC/DC will resume their Power Up tour in North America starting July 11, 2026, in Charlotte, North Carolina.
Read at Consequence
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