Seismic Site
Classification

Geophysical measurements are an effective method to obtain Vs30 values for seismic site classification.  Multi-Channel Analysis of Surface Waves (MASW) is a non-invasive method to determine Vs30 at specific sounding locations or across an entire site.  Downhole and Cross-Hole seismic measurements can also be used to obtain Vp and Vs values where boreholes are available.