Fans who flocked to Seattle for Taylor Swift鈥檚 recent back-to-back concerts danced to the popstar鈥檚 music with such gumption that it was recorded on the Richter scale.

At her July 22 and 23 concerts at Lumen Field, the fans 鈥� dubbed Swifties 鈥� generated a seismic event equivalent to a 2.3 magnitude earthquake.

The Swift concerts beat the last record, dubbed the 鈥淏east Quake,鈥� set back in 2011 when Seahawks fans celebrated a Marshawn Lynch touchdown during a playoff game against the New Orleans Saints.

The difference between the two quakes is only 0.3 on the scale, but the shaking at Swift鈥檚 concert was twice as strong, according to geology professor Jackie Caplan-Auerbach.

鈥淐heering after a touchdown lasts for a couple seconds, but eventually it dies down. It鈥檚 much more random than a concert,.鈥� she said. 鈥淔or Taylor Swift, I collected about 10 hours of data where rhythm controlled the behavior. The music, the speakers, the beat. All that energy can drive into the ground and shake it.鈥�

Swift acknowledged her fans in an Instagram post, thanking them for 鈥渁ll the cheering, screaming, jumping, dancing, and singing at the top of your lungs鈥� while she performed.

鈥淭hat was genuinely one of my favourite weekends ever.鈥�