Soil liquefaction is a main concern in geotechnical engineering that can potentially damage civil infrastructure, affect communities, and cause substantial economic losses. Numerous methods have been proposed to assess the risk of liquefaction triggering and have been successfully used to predict the onset of liquefaction. The main goal of this paper is to compare different methods used for the calculation of the factor of safety against liquefaction and liquefaction-induced settlements employing a probabilistic framework. The evaluation is mainly based on the results of Cone Penetration Test (CPT) probes of the Port of Long Beach (POLB), Pier S located in the southern California area. Although those methods are widely accepted and used in practice, this research presents a critical review of the methods used to calculate settlements and their large scatter when predicting earthquake-induced ground settlements.