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Dec 31, 2023 · The effects of a tsunami are devastating. They are one of the world's worst natural disasters that can hit a country. Tsunami damage is first caused by the immense force of the tidal wave hitting the shoreline.
Oct 1, 2018 · Large tsunamis are significant threats to human health, property, infrastructure, resources, and economies. Effects can be long-lasting, and felt far beyond the coastline. Tsunamis typically cause the most severe damage and casualties near their source, where there is little time for warning.
Tsunamis with runups over one meter (3.28 feet) are particularly dangerous to people and property, but smaller tsunamis can also be dangerous. Strong currents can injure and drown swimmers and damage and destroy boats and infrastructure in harbors.
A tsunami’s trough, the low point beneath the wave’s crest, often reaches shore first. When it does, it produces a vacuum effect that sucks coastal water seaward and exposes harbor and...
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Apr 2, 2007 · ByNational Geographic Staff. April 02, 2007. •10 min read. A tsunami is a series of great sea waves caused by an underwater earthquake, landslide, or volcanic eruption. More rarely, a tsunami...
May 13, 2024 · Much like any other water waves, tsunamis are reflected and refracted by the topography of the seafloor near shore and by the configuration of a coastline. As a result, their effects vary widely from place to place.
Jun 8, 2018 · Tsunami Impacts. The 2004 Indian Ocean tsunami reached heights of 65 to 100 feet in Sumatra, caused more than 200,000 deaths from Indonesia to East Africa, and registered on tide gauges throughout the world. The 1964 Alaska tsunami led to 110 deaths, some as far away as Crescent City, Calif.
