When Lionel Messi scores another wonder strike, the city of Barcelona literally shakes.
Scientists have a seismometer installed close to the Camp Nou stadium and it picks up the telltale vibrations every time the crowd celebrates a goal.
There is a clear spike in the data as fans jump up and down.
And the seismogram that perhaps best captures this is Barça’s “miracle comeback” against Paris Saint-Germain in last season’s Champions League.