| Why Are Locally Generated Tsunamis So Dangerous? |
A locally generated tsunami may reach a nearby shore in less than ten minutes. There is not sufficient time for the Pacific Tsunami Warning Center or for local authorities to issue a warning. &n
Updated: 19/8/08
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| What Determines How Destructive a Tsunami Will Be Near the Origin and At a Distant Shore? |
Tsunamis arrive at a coastline as a series of successive crests (high water levels) and troughs (low water levels) - usually occurring 10 to 45 minutes apart. As they enter the shallow waters of
Updated: 19/8/08
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| What Are the Factors of Destruction From Tsunamis? |
There are three factors of destructions from tsunamis: inundation, wave impact on structures, and erosion. Strong, tsunami-induced currents lead to the erosion of foundations and the collap
Updated: 19/8/08
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| Why Aren't Tsunamis Seen at Sea or From the Air? |
In the deep ocean, tsunami wave amplitude is usually less than 1 m (3.3 feet). The crests of tsunami waves may be more than a hundred kilometers or more away from each other. Therefore, pa
Updated: 19/8/08
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| How Does Tsunami Energy Travel Across the Ocean and How Far Can Tsunamis Waves Reach? |
Once a tsunami has been generated, its energy is distributed throughout the water column, regardless of the ocean's depth. A tsunami is made up of a series of very long waves. The waves wi
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| Where and How Frequently are Tsunamis Generated? |
Tsunamis are disasters that can be generated in all of the world's oceans, inland seas, and in any large body of water. Each region of the world appears to have its own cycle of frequency and pa
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