This paper has been adapted from an original presentation by the author to a national workshop in the U.S. (Dobry, 2014). After a discussion on the two successive stages of liquefaction triggering in the free field, associated with small cyclic strains, and post-triggering due to earthquake shaking, it is concluded that most liquefaction consequences of engineering significance involve high strains and hence are post-triggering phenomena. The liquefaction consequences are classified in four main categories: (i) flow slides and large deformations of embankments and slopes; (ii) free field deformations including lateral spreading; (iii) structural effects driven by the free field deformations; and (iv) structural damage that includes effects of gravitational and inertial structural forces. Each one of the four categories are discussed separately with focus on the current State-of-Practice of their evaluation and technical challenges.