![building vibration](https://cdn.svantek.com/wp-content/uploads/2020/03/building-ground-vibration-1024x488.jpg)
Building and ground vibrations
Generally, there are two methods of building vibration measurements: one that uses PPV method with the FFT for dominant frequency analysis and second that analyses vibrations in 1/3 octave bands. Both methods use different criteria for building damage and they might interpret the same vibration event differently.