Through this book effort has been made to make the complex and intricate subject of earthquake engineering, as easy and informative as possible. The book provides deep insights into the theory and practice of this discipline. Earthquake engineering is concerned with the designing and construction of buildings which are earthquake resistant and can bear the force of this natural hazard. As, the threat of earthquakes is increasing and the population density of cities is also increasing, making buildings with earthquakes in mind is becoming pivotal. Thus, the chapters included in this text will cover the most important topics with regard to earthquake engineering. Some of the diverse topics covered in the book address the varied branches that fall under this category. As this field is emerging at a rapid pace, the contents of this textbook will help the readers understand the modern concepts and applications of the subject.