Taylor Swift's concerts in Seattle last weekend caused such a seismic event that it registered signals on a nearby seismometer, equivalent to a magnitude 2.3 earthquake, according to seismologists. The phenomenon, dubbed the "Swift Quake," occurred during the two sold-out shows at Lumen Field, where Swift performed for over 144,000 fans. This seismic activity surpassed the previous record set by the “Beastquake” in 2011, which was triggered by Seahawks fans celebrating a touchdown by Marshawn Lynch. The ground shaking during the Swift concerts was more intense and lasted for hours compared to the short-lived Beastquake. Geologists believe the shaking was caused by a combination of the music and the synchronized dancing of Swift's fans, known as Swifties. The concerts' seismic activity will contribute to our understanding of earthquakes and how buildings respond to shaking. Seismologists also noted that similar events might have occurred in other locations but were not recorded due to the lack of seismometers near arenas and stadiums. The Swift Quake has sparked an interest in seismology and geology among fans, which has been celebrated by experts who believe that engaging in scientific observation and data collection is a form of doing science. Further research will focus on determining the exact causes of the seismic activity during the concerts, including the effects of jumping, dancing, loud speakers, and specific songs or genres. Videos and insights from Swift fans who attended the concerts will be invaluable in this research. The “Swift Quake” is not an isolated incident, as the seismometer also recorded signals during The Weeknd's concert and is expected to do the same during Beyonc?©'s upcoming performance. The attention brought to the seismic activity caused by the concerts could potentially inspire young fans to pursue careers in seismology or earth sciences. Swift herself expressed her gratitude to her Seattle fans for their enthusiastic support, calling it one of her favorite weekends ever. The “Swift Quake” adds to the list of memorable moments from Swift's Eras Tour, which is on track to become one of the highest-grossing tours of all time.