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Tsunamis will sometimes go undetected until they draw near shallow waters along a coast. Tsunamis are recurrent in Japan. Approximately 195 events have been recorded. Due to the immense volumes of water and energy involved, tsunamis can devastate coastal regions. Casualties can be high because the waves move faster than humans can run. These waves have outsized wave length (up to several hundred miles) that is a function of the depth of the water where they were formed. Although these waves have a small height, there is a tremendous amount of energy linked with them. As an effect of this huge amount of energy, these waves can become gigantic as they approach shallow water. As they crash upon the shore there height depends on the underwater surface features.

They can reach up to 100 to 300 feet. The world's largest tsunami ever recorded was in Lituya Bay, Alaska on July 9, 1958. The waves reached up to the height of 1,638 to 1,720 feet high. It was triggered by a landslide and an earthquake with a magnitude of 8.3.

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14y ago
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11y ago

the fastes tsunami had a speed of 500-600 miles per hour

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13y ago

Hundreds of miles an hour are possible speeds.

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13y ago

The fastest tsunami can travel about 960 miles per hour

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13y ago

a tsunami almost reach a speed of 200 m/s

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13y ago

Over 500kms was recored

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15y ago

500

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Q: What was the speed of the Indian ocean tsunami?
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