How fast do the fastest tsunami waves travel in the deep ocean?

How fast do tsunami waves tend to move in the deep ocean compared to when they reach shore?

Differences between tsunamis and wind-driven waves

Tsunami
Location of Energy Entire water column, from the ocean surface to the ocean floor
Wave- length 300-600 miles (500-1,000 kilometers)
Wave Period 5 minutes-2 hours
Wave Speed Deep water: 500-600 mph (800-1,000 km/h) Near shore: 20-30 mph (30-50 km/h)

Can you detect a tsunami in the open ocean?

Tsunamis are detected by open-ocean buoys and coastal tide gauges, which report information to stations within the region. Tide stations measure minute changes in sea level, and seismograph stations record earthquake activity.

How fast do Tsunamis travel on land?

Out on the sea, these waves can be hundreds of miles long but no taller than a few feet and travel at the speed of a jet plane, up to 500 miles per hour. When the waves approach land, they will slow to about 20 or 30 miles an hour and begin to grow in height.

What is the speed of tsunami waves in Kilometre per hour?

For example, at the deepest ocean depths the tsunami wave speed will be as much as 800 km/h, about the same as that of a jet aircraft. Since the average depth of the Pacific ocean is 4000 m (14,000 feet) , tsunami wave speed will average about 200 m/s or over 700 km/h (500 mph).

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How do tsunamis travel so fast?

A: Tsunamis travel fast because they have a very long wavelength compared to wind-driven water waves. Tsunamis originate when the entire column of water above the seafloor is uplifted or dropped down. Unlike wind waves, they are driven by gravity.