The readings occurred throughout both of Swift’s concerts on the nights of July 22 and 23 and was sustained throughout. The shaking of the ground was more than “twice as hard” as at the 2011 Seahawks game,Caplan-Auerbach said.
While this was 0.3 magnitude greater than in 2011,that’s a twofold difference under the Richter scale,which is logarithmic. The likely cause was a combination of the music from the concert’s sound system and Swift’s fans – known as Swifties – dancing in sync with it,seismologists said.
The pop megastar is currently four months intoher Eras Tour,a worldwide tour that to date has drawn immense crowds around the US to hear Swift perform songs spanning her 10-album career.
Her opening Arizona show in March drew about 70,000 fans. Ticket prices for her show in Santa Clara,California,on Friday were selling for up to $US20,000 on Vivid Seats,a secondhand ticket exchange.
The two back-to-back concerts in Seattle logged a near-identical pattern on the seismometer,Reusch said,which suggested the sets were nearly identical as well.
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“That was surprising to me,that we’re able to see something so coherent,” she said. “One was offset by about 26 minutes because it was late.”
The shaking at both shows reached a maximum peak twice,first around 7.30pm and the second around 9.30pm (Seattle time),according to data shared withThe New York Times.
It was not immediately clear which Swift songs caused the peaks. BesidesShake It Off,the setlist includedLove Story,Bad Blood,andAnti-Hero,all songs guaranteed to get Swifties on their feet.
While the concerts shook the ground exceptionally hard,Caplan-Auerback said,it is important to understand that seismometers pick up signals from “anything that shakes the ground”,including cars,trains and even wind.
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Nor are Swift’s earthshaking abilities unique to the music world.
The seismometer also recorded signals when The Weeknd played at Lumen Field on August 25,2022,Caplan-Auerback said,though they were not as strong.
Beyoncé will be playing there September 14,she said. “I’ll be looking at that for sure.”
As for Reusch,she was encouraged by the public attention.
“Maybe there’s some young Swifties out there that will some day become seismologists or earth scientists,” she said. “That would be a real happy ending.”
This article originally appeared inThe New York Times.
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