What are the main characteristics of a tsunami?
As the waves slow down, they can grow in height and currents intensify. Most tsunamis are less than 10 feet high, but in extreme cases, can exceed 100 feet. When a tsunami comes ashore, it will not look like a normal wind wave. It may look like a fast-rising flood or a wall of water.
What are the two characteristics of tsunami?
TSUNAMI CHARACTERISTICS 1.1 What is a tsunami? A tsunami is a series of waves with a long wavelength and period (time between crests). Time between crests of the wave can vary from a few minutes to over an hour. Tsunamis are often incorrectly called tidal waves; they have no relation to the daily ocean tides.
What the causes of tsunami write characteristics?
Tsunami are waves caused by sudden movement of the ocean surface due to earthquakes, landslides on the sea floor, land slumping into the ocean, large volcanic eruptions or meteorite impact in the ocean.
How Tsunamis are named?
Tsunamis are classified by their strength and intensity. … Tsunami are usually named for the landmass they impact, or city or town they inflict damage upon. The recent Fukishima tsunamis that impacted Japan was named for the nuclear reactors that were overrun with salt water from the ocean.
What are the characteristics of tsunami waves in the deep open ocean?
A tsunami in the deep ocean has very long wavelengths and very low amplitude. Approaching the shore the tsunami will slow down in speed and amplitudes will increase dramatically. This is due to the fact that the tsunami’s energy flux, which is dependent on both its wave speed and wave height, remains nearly constant.
Which of the following is characteristic of a tsunami quizlet?
Tsunamis have a very long wavelength (sometimes over 100km) and a low wave height (under 1 metre) in the open ocean, and they travel quickly at speeds of over 700km per hour but, when reaching shallow water bordering land, increase rapidly in height.