Was it the drums? Did they turn the power up too high?

Wednesday night's AC/DC concert in Melbourne registered on earthquake detection equipment as the rock icons played their first concert in Australia in a decade.

Chief scientist at the Seismology Research Centre, Adam Pascale, said the concert registered in the 2-5 hertz range at their office in Richmond, about three-and-a-half kilometres from the concert at the MCG — enough for people to feel the ground shake.

"The sound waves that people were experiencing nearby and feeling something through their bodies, that's the equivalent to what our seismographs feel," Mr Pascale said.

"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

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