This volume, derived from the 1999 International Tsunami Symposium, presents a unique look at the state of tsunami research at the end of the 20th century. It displays recent progress both in data recovery and reconstructions of historical tsunamis and in detail examination of recent disasters. It shows the tsunami community using both traditional methods of data gathering - searching archives and attempting to simulate past events - and integrating modern technologies - side-scan sonar, GPS, global communications, supercomputers - in the quest to understand tsunamis and improve mankind's ability to mitigate the disastrous consequences of these unpredictable and unstoppable events. It chronicles recent advances in mitigation efforts while illuminating the continuing need for increased efforts. The papers range from descriptive texts for the non-specialists to fairly technical discussions for those familiar with tsunami research. Audience: This book will be of interest to researchers and graduate students involved in natural hazards research, physical oceanography, seismology, environmental impact assessment and risk assessment.The 1990s: A Critical Decade in Tsunami Research and Mitigation; E.N. Bernard, G.T. Hebenstreit. Recent Developments in Tsunami Hazard Mitigation; E.N. Bernard. `Red', `Green' and `Blue' Tsunamigenic Earthquakes and their Relation with Conditions of Oceanic Sedimentation in the Pacific; V.K. Gusiakov. Tsunami Scour Mechanisms around a Cylinder; H. Yeh, F. kato, S. Sato. Mitigation Strategies Based on Local Tsunami Effects; J. Preuss, P. Raad, R. Bidoae. Traffic Hindrance After Tsunamis; N. Shuto. Offshore Forecasting of Alaskan Tsunamis in Hawaii; V.V. Titov, H.O. Mofjeld, F.I. Gonzalez, J.C. Newman. 1952 North Kuril Tsunami: New Data from Archives; V. Kaistrenko, V. Sedaeva. Tsunami Risk in the Aegean Sea and the Role of Systematic Field, Laboratory, and Documentary Studies: The l1