Tsunami, Tide Force

•A (a)   is a series of extremely long waves caused by a large and sudden displacement of the ocean, usually the result of an earthquake below or near the ocean floor.

tsunamis have high-frequency ocean waves generated by submarine earthquakes.

What does Tsunami means in Japanese?

(a)   is an increase in wave amplitude that happens when water waves (not just tsunamis) go from deep to shallow water – particularly at the coast .

What is the most powerful storm that hit the Philippines in recent history with atleast 150 mph wind speed which became a super typhoon?

Which country has the greater risk in tsunami?

The sudden motion of seafloor over distances of a hundred or more

kilometers generates waves with periods of (a)   minutes

Tidal currents can have speeds up to (a)   m/s in coastal waters, impeding navigation and

mixing coastal waters.

Do the first wave of a tsunami usually the strongest?