USA-ALSHARQIYA, July 29: Seismologists in America said that a concert by the famous American singer Taylor Swift in downtown Seattle last weekend caused the earth to shake strongly, resulting in tremors roughly equivalent to a 2.3-magnitude earthquake, according to what she said. The New York Times newspaper.
"It's definitely the biggest concert we've had in a while," said Maus Rioch, a seismologist with the Pacific Northwest Seismic Network, which monitors earthquake activity in the Pacific Northwest. "We're talking about 10,000 people and all the music and instruments associated with the concert."
For his part, Jackie Kaplan Auerbach, a seismologist at Western Washington University, said that what was recorded is what is called a "quick quake", which is a ground acceleration of about 0.011 meters per second.
Seismologists use accelerometers to measure the ground's vibrations, which are then converted to the Richter scale, the common measurement for earthquakes.
Seismometers can pick up ground vibrations of all kinds, including those caused by marching cars and cattle feet.
The readings took place throughout Taylor Swift's concerts on the nights of July 22 and 23 and continued throughout both concerts.
The likely culprit, seismologists said, was a combination of music from the concert's sound system and fans of Taylor Swift - sometimes known as Swifties - dancing to her songs.
Its opening show in Arizona in March drew nearly 70,000 fans. Tickets to her show in Santa Clara on Friday have sold for as much as $20,000 a ticket.
