This multi-contributor descriptive book provides in-depth knowledge regarding the field of earthquake engineering. With increasing seismic activities and major earthquakes, the need for intense research and better understanding of the nature of seismisms and their effects on structures is rapidly increasing. In the wake of frequent disasters, earthquake engineering research has been expanding as significant data has become available from a large array of seismic instruments, large scale experiments and numerical simulations. This book opens with results from some of the contemporary seismic research works including 3D wave propagation in different soil media, seismic loss assessment, probabilistic hazard analysis, geotechnical problems including soil-structure interaction. It also focuses on the seismic behavior of structures including historical and monumental structures, bridge embankments and different types of bridges and bearings.