Tsunamis Are an Urgent World Problem

This chapter delves into the urgent global problem of tsunamis, exploring their causes, characteristics, and the devastating impact they have on coastal regions. It provides a detailed analysis of historical tsunamis, highlighting the most significant events over the last 120 years, including the catastrophic 2004 Indian Ocean tsunami. The text discusses the primary causes of tsunamis, such as earthquakes, volcanic eruptions, and landslides, and explains the scientific principles behind their formation and propagation. It also examines the advancements in tsunami warning systems, including the Pacific Tsunami Warning System, Japan's sophisticated system, and the Indian Tsunami Warning Centre. The chapter emphasizes the importance of early warning systems in mitigating the impact of tsunamis and saving lives. Additionally, it explores the use of laboratory modelling and hydrodynamic simulations to understand wave run-up and the development of tsunami-resistant infrastructure. The conclusion underscores the ongoing relevance of the tsunami problem and the need for continuous improvement in warning systems and disaster preparedness.