Many decades ago I worked at the sierra natural history museum in california. It on a college campus and it has a Richter scale within the confines of the museum
Classes more or less released for lunch at the same time every day past a certain point due to teachers union agreements. The Richter scale would always register a seismic event just from students migrating from the classrooms to the various food venues and seating areas. We had to make a note on the printout (yes I'm that old)
Seismic activity caused by large groups of people moving together is a well known and documented phenomenon.
The focus of the article is that her quake was bigger than other previous man-made quakes during massive events in the same location and is presented as a proof/show of how popular Taylor Swift is and how passionate are their fans. (much wow).
If you think "Fans of X celebrity are very "energetic"" is a news article that should be posted here its fine, its news after all and people seem to like it, but lets not pretend this is a scientific article in any way.
This whole taylor swift obsession to the point of wearing diapers to the concerts and shit is insane. How people can overrate someone this bland and unoriginal is beyond me.
I mean do these things for Tool or even like Beyonce I can understand that. But taylor fucking swift. I'm more and more convinced that she's a witch or sth