According to researchers, the ground tremors triggered at concerts by pop star Taylor Swift (33) in the North American city of Seattle were comparable to a small earthquake.
The measurements would have shown them as something similar to an earthquake with a magnitude of 2.3 – not really noticeable, but measurable, US media reported, citing several seismologists.
It was said that the triggers were probably the sound system and the movements of the around 70,000 visitors in time with the two concerts around a week ago. Similar, if slightly less severe, shocks had also been measured at a concert by rapper The Weeknd and at a football game in Seattle.
