Taylor Swift’s recent Eras Tour concerts had fans in Seattle, Washington shook, literally. Swifties have been passionately singing and dancing along during the 33-year-old singer’s U.S. portion of her Eras Tour for months. But fans at her Lumen Field concerts in Seattle possibly formed the most vibrant crowd so far, causing the ground to physically shake. According to Western Washington University geology professor Jackie Caplan-Auerbach, Swift’s tour stops on July 22 and 23 created seismic activity. The seismologist collected data from a seismometer located near the stadium and determined...…Taylor Swift’s recent Eras Tour concerts had fans in Seattle, Washington shook, literally. Swifties have been passionately singing and dancing along during the 33-year-old singer’s U.S. portion of her Eras Tour for months. But fans at her Lumen Field concerts in Seattle possibly formed the most vibrant crowd so far, causing the ground to physically shake. According to Western Washington University geology professor Jackie Caplan-Auerbach, Swift’s tour stops on July 22 and 23 created seismic activity. The seismologist collected data from a seismometer located near the stadium and determined...WW…