(1) Geotechnical uncertainty and variability (2) Geohazards such as landslides, earthquakes and climate changes (3) Reliability and risk analysis (4) Reliability-based design and limit-state design in geotechnical engineering (5) Risk assessment and management in geotechnical engineering and infrastructural projects, and (6) Practical applications. is an excellent source of reference on the latest developments and practices of geotechnical risk and safety, and will proof to be invaluable for civil engineers (particularly geotechnical engineers), geologists, and natural hazards reduction agencies. ISGSR IV is a continuation of a series of symposiums and workshops on geotechnical risk and reliability, starting with LSD2000 (Melbourne, Australia), IWS2002 (Tokyo and Kamakura, Japan), LSD2003 (Cambridge, USA), Georisk2004 (Bangalore, India), Taipei2006 (Taipei, Taiwan), 1st ISGSR (Shanghai, China, 2007), 2nd ISGSR (Gifu, Japan, 2009) and 3rd ISGSR (Munich, Germany, 2011).