Why is tidal wave a poor name for tsunami?
Tsunamis are ocean waves triggered by: Large earthquakes that occur near or under the ocean Volcanic eruptions Submarine landslides Onshore landslides in which large volumes of debris fall into the water Scientists do not use the term “tidal wave” because these waves are not caused by tides.
Why is tidal wave not an accurate name for a tsunami quizlet?
The term “tidal wave” is a misnomer. Tides are the result of gravitational influences of the moon, sun, and planets. Tsunamis are not caused by the tides and are unrelated to the tides; although a tsunami striking a coastal area is influenced by the tide level at the time of impact.
Which type of plate boundary is associated with most killer tsunami?
Most large tsunamis occur at convergent plate boundaries where two tectonic plates are crashing into each other. As the two plates collide one plate is forced down underneath the other.
What does the word tsunami mean quizlet?
A Japanese word meaning “harbor” Tsunami. A series of large waves that is caused by an underwater earthquake or volcanic eruption.
Can the terms tsunami and tidal wave be used to describe the same event?
Can the words tsunami and tidal wave be used to describe the same event? They are not used to describe the same event. *Tsunami and tidal waves are related to ocean and sea. Tides in the ocean are naturally caused by atmospheric changes, but are not harmful.
What is the major source of large damaging tsunamis over the past few million years quizlet?
— megathrust fault earthquakes- the most common cause is submarine earthquakes and particularly those that occur along the subduction zone. beneath the oceans can generate tsunami.
Which of the following occur when a tsunami reaches the shore?
Because of this “shoaling” effect, a tsunami that was imperceptible in deep water may grow to be several feet or more in height. When a tsunami finally reaches the shore, it may appear as a rapidly rising or falling tide, a series of breaking waves, or even a bore.
What causes tsunami waves?
What causes tsunamis? Most tsunamis are caused by earthquakes on converging tectonic plate boundaries. … However, tsunamis can also be caused by landslides, volcanic activity, certain types of weather, and—possibly—near-earth objects (e.g., asteroids, comets) colliding with or exploding above the ocean.
What happened to tsunami wavelength when wave arrives?
As the tsunami waves become compressed near the coast, the wavelength is shortened and the wave energy is directed upward – thus increasing their heights considerably. Just as with ordinary surf, the energy of the tsunami waves must be contained in a smaller volume of water, so the waves grow in height.
Do divergent boundaries cause tsunamis?
In a divergent plate boundary, the plates move away from each other. … If the there is a shift, like an earthquake, on the ocean floor and a plate boundary rises or falls, it displaces the water above. The destructive force causes a tsunami to form. Volcanic eruptions and underwater landslides can also cause tsunamis.