It is true according to BBC News:
"Taylor Swift's concerts in the US city of Seattle generated seismic activity equivalent to a 2.3 magnitude earthquake, a seismologist has said.
The data was recorded at Swift's sell-out Eras tour performances at Lumen Field on 22 and 23 July.
Seismologist Jackie Caplan-Auerbach said the activity was caused by Swift's fans or the sound system.
The shows beat the previous record in Seattle, known as the city's "Beast Quake" in 2011.
That was generated by American football fans celebrating Marshawn Lynch's touchdown for the Seattle Seahawks during a game against the New Orleans Saints.Dr Caplan-Auerbach, a geology professor at Western Washington University, told CNN the difference between the NFL game and Swift's recent concerts was just 0.3, but the "shaking was twice as strong" and "absolutely doubled it".
"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.""
So in reality there's some sensationalism, but it is true. It was simply stronger than a typical sports game.
https://www.bbc.com/news/world-us-canada-66347361