Empirical Correlations between Peak Ground Velocity and Spectrum‐Based Intensity Measures

Empirical correlation equations between peak ground velocity ( PGV ) and several spectrum‐based ground motion intensity measures are developed. The intensity measures examined in particular were: peak ground acceleration ( PGA ), 5% damped pseudo‐spectral acceleration ( SA ), acceleration spectrum intensity ( ASI ), and spectrum intensity ( SI ). The computed correlations were obtained using ground motions from active shallow crustal earthquakes and four ground motion prediction equations. Results indicate that PGV is strongly correlated (i.e., a correlation coefficient of ) with SI , moderately correlated with medium to long‐period SA (i.e., for vibration periods 0.5‐3.0 seconds), and also moderately correlated with short period SA , PGA and ASI (). A simple example is used to illustrate one possible application of the developed correlation equations for ground motion selection.