This book is a compilation of the English version of the selected Chinese articles and includes six chapters, with detailed introduction of the formation mechanisms, risk assessment, monitoring and warning, and disaster mitigation measures of six types of natural disasters: earthquake, drought, flood, typhoon, landslide and debris flow. It provides scientific and technical support for understanding the patterns of disaster occurrence, predicting the future disasters, and mitigating the harm caused by natural disasters, which has practical significance for disaster prevention and mitigation worldwide. Therefore, this book can be used as a reference for researchers, technicians, teachers and students focusing on prevention and mitigation of natural disasters.