Taylor Swift's Seattle Concerts Shake the Ground with Seismic Activity

According to a seismologist, Taylor Swift's concerts in the city of Seattle in the US caused seismic activity equivalent to a 2.3 magnitude earthquake.

Seismologist Jackie Caplan-Auerbach said that the recorded seismic activity, equivalent to a 2.3 magnitude earthquake, during Taylor Swift's sell-out Eras tour performances at Lumen Field on 22 and 23 July, to either the enthusiasm of Swift's fans or the impact of the sound system.

Taylor Swift's concerts beat the previous seismic record in Seattle, famously known as the city's "Beast Quake" in 2011. The "Beast Quake" was triggered by enthusiastic American football fans celebrating Marshawn Lynch's touchdown for the Seattle Seahawks during a game against the New Orleans Saints.

Geology professor Dr. Caplan-Auerbach from Western Washington University explained to CNN that the seismic activity generated by Taylor Swift's recent concerts had a difference of only 0.3 compared to the NFL game ("Beast Quake"), but the shaking was twice as intense, effectively doubling its impact.

"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."

The attendance for the two-night Seattle concerts reached 144,000 fans.

Posting on Instagram afterward, Swift said: "Seattle that was genuinely one of my favorite weekends ever. Thank you for everything. All the cheering, screaming, jumping, dancing, singing at the top of your lungs."

Taylor Swift's concerts in Seattle marked the end of the US leg of her Eras tour, which was her first tour in five years.

Music concerts have previously been known to cause seismic activity, as seen during a 2011 Foo Fighters concert in New Zealand, where similar phenomena occurred.