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Transcript of science
What is a Tsunami?
A Tsunami is an extended high sea wave that is caused by an earthquake or other disterbances that can cause a Tsunami. This can lead to a huge cause of massive damage to different countries.
-A tsunami is not just one wave but a series of waves or a “wave train.”
-When the ocean is deep, tsunamis may be less than a foot high on the ocean’s surface, can travel at speeds up to 500 mph without being noticed and cross the entire ocean in less than a day.
-Once a tsunami reaches the shallow water near the coast, it slows down. The top of the wave moves faster than the bottom, causing the sea to rise dramatically, as much as 100 feet at times.
-Tsunami waves can be as long as 60 miles and be as far as an hour apart. These waves can cross entire oceans without losing much energy.
-Scientists can accurately estimate the time when a tsunami will arrive almost anywhere around the world based on calculations using the depth of the water, distances from one place to another, and the time that the earthquake or other event occurred.
-Not counting the 2011 tsunami in Japan, there were 26 tsunamis that killed at least 200 people or more in the last century.
How is a Tsunami formed?
A Tsunami is formed by a series of waves combined together. Forming an ocean or another body of water by a disturbance such as an earthquake, landslide, volcano eruption, or meteorite impact. Undersea earthquakes, cause the water above to be moved up and down. As the water is moved up and down it forms a tsunami wave.
How does a Tsunami affect People & Structures
How a Tsunami is formed