This book presents a comprehensive examination of advances in foundation and earthquake geotechnical engineering, integrating theoretical principles with practical analysis and contemporary investigative methods. It explains how soil behaviour, ground conditions, and structural response interact under seismic loading and dynamic forces. The discussion addresses analytical modelling, site characterisation, and risk assessment techniques used to evaluate stability, deformation, and resilience of foundations and earth structures. Attention is given to engineering geology, slope stability, ground improvement strategies, and the application of geophysical and digital mapping technologies in subsurface investigation. By linking mechanics with field-based assessment and design practice, the book provides a structured framework for understanding geotechnical performance in seismic regions. It emphasises reliability, safety, and sustainability in foundation design and retrofit, supporting informed engineering judgement within complex geological environments.

It is intended for postgraduate students, researchers, and practising engineers in geotechnical and earthquake engineering. The book serves as an academic reference and professional guide, supporting advanced analysis, design evaluation, and risk mitigation strategies. It contributes to improved infrastructure resilience, hazard preparedness, and responsible geotechnical practice in regions exposed to seismic and geohazard challenges worldwide today.