Describe how a tsunami is generated. Explain how tsunami warning systems are used to help forecast tsunami events. Choose a recent tsunami event and describe the history of its occurrence, as well as its impacts on human beings.
A tsunami, or tidal wave, is generated by an underwater earth movement that disturbs the overlying water. Earthquakes occur when two tectonic plates move past each other. We need to remember that these plates do not glide past each other smoothly. The tectonic forces driving them build up over time, and movement occurs suddenly when these forces are greater than the fiction between the plates. Then the force is suddenly released in a violent, sudden movement. This displaces large volumes of ocean water, generating a wave ...
Solution provides an example of a recent tsunami, description of how tsunamis are generated, and a discussion of warning systems.