New Zealand-reputed as being the Shaky Isles-now has new reasons to maintain its reputation as the Shaky Isles, thanks to the Foo Fighters and their fans.
During a recent concert at an outdoor stadium in Auckland, 50,000 dancing fans were responsible for causing rumbles similar to that of volcanic tremors. The tremors were so powerful that they were even picked by seismic monitors, reported by New Zealand’s seismic monitoring service GeoNet.
According to GeoNet the tremors were caused by fans whose weight could be equivalent to 5000 tonnes of mass moving on the earth’s surface and the vibrations were recorded at about 7.30 pm. However the biggest shake begun after an hour when the Foo Fighters came on stage.
The vibrations continued throughout the concert, reaching its peak during the songs and calming down between songs. During the peak, the vibrations maintained a rhythmic motion, shaking three times per second.
The vibrations stopped when the concert ended. According to GeoNet, the signals captured were similar to tremors caused by two active volcanoes in the North Island, Mt Ruapehu and White Island. Similar vibrations were also recorded during the Rugby World Cup Final.