On December 13th, Foo Fighters closed out their Wasting Light tour with a show at Auckland, New Zealand’s Western Springs Stadium. This concert was one of typical Foo proportions: tens of thousands of people, absurd energy, and…earthquakes? According to nearby monitoring systems in Herne Bay and Eden Park, tremors were recorded that – oddly enough – coincided directly with Grohl and his gang’s setlist. Here’s GeoNet’s take on the situation:
“The concert vibrations were recorded as a semi continuous harmonic signal with a peak osculation of 3Hz, ie the ground was shaking 3 times per second in a nice rhythmic motion. There are lulls in the signal between the songs and peaks in signal intensity during the songs.
The cause of the shaking is most likely the weight of the 50,000 fans dancing, as 50,000 fans is equal to around 5,000 tonnes of mass moving (or moshing) on the ground for the duration of the concert. This set up a nice harmonic vibration in the ground which was recorded in our nearby borehole seismometers.”
So there you have it. Foo Fighters successfully moved the earth. We expect seas to be parted on the forthcoming tour. Post your thoughts below in the comment section.