WWU Seismologist Says Taylor Swift Fans Set Off 2.3 Magnitude ‘Swift Quake’ During Seattle Concert

According to seismologist Jackie Caplan-Auerbach, the newly-coined "Swift Quakes" occurred on July 22 and 23 at Swift's Eras Tour dates at Seattle's Lumen Field — which saw record attendance on Saturday — CNN reported.

Caplan-Auerbach stated that the Swifties' dance activity caused seismic activity "equivalent of a 2.3 magnitude earthquake," per the outlet.

The Western Washington University geology professor noted the occurrences while moderating a Pacific Northwest earthquake group on Facebook.

"I grabbed the data from both nights of the concert and quickly noticed they were clearly the same pattern of signals," she said. "If I overlay them on top of each other, they're nearly identical."