To estimate ground motion prediction equation (GMPE). The GMPE relate ground motion parameters, usually amplitude parameters, to sets of independent variables representing the cause of the motion. The following independent variables could be taking into account: characteristic of the path, source and site. Moreover, the non-linearity of ground vibration propagation on short distances from the epicenter is supported by using h as the common/fix depth factor. h is estimated so that the standard error of estimation is the least. The finale model is estimated in three steps, includes the statistical and physical correctness of the model, estimation of the fixed depth (if its chosen as a parameter) and residuals analysis. The finale results include also 95% confidence intervals for estimated values.
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