0
Tsunami's and all waves for that matter can move faster than 500mph( 500mph being the average) in open oceanslow when closing in to the shore because of the shallower volume. With tsunami's reaching the coastline the energy concentrates to a smaller energy slows BUT the volume of water is smaller thus a type of containment happens; speed decreases but the amplitude increases.
A small wave that might be unnoticable in wave height in open ocean will therefore grow as there is no place for that volume of energy to go but upward. So you'l see a tidal displacement from a tsunami over say thousands of miles whereas say the Indonesian tsunami still had a huge amount of energy and came if fast in Thailand making for a spectacular but very deadly large wave that travels much slower yet that energy will still puch the wave(s) far inland depending on the power of the earthquake. From ousands of miles away the tsunami drops in size as the energy will dissipate in the miles traveled but still carry a wallop whan it hits shore as seen in the Japanese tsunami that hit the Santa Cruz harbor, and Crescent City( and on Northward. Also there is a variable in where the most power from the earthquake its directed and the ocen floor can alter the strength and direction somewhat. Hope this helps.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
What happens to waves as they slow down and approach shore?
it keeps on slowing down and hitsthe shore.
Why a tsunami cannot be seen as it travels through the ocean?
When in open ocean a tsunamis are usually only a few feet high and often hundreds of miles long. Even with their high speed they often take several minutes to pass. When they enter shallow water they slow down and increase in height.
What is a syonym for slow?
Slow Down, Slow, retared
Why did your metabolism slow down?
The metabolism can greatly slow down when you have hormone problems. It can also slow down if you don't eat healthy foods and exercise.
What is the farthest inland a powerful tsunami can go?
Mega-tsunamis - tsunamis that are extraordinarily huge - are said to be able to travel as far as 25 kilometers inland.More tsunami tidbits from our users:Landforms slow them down considerably. The distance traveled inland is directly related to the change in elevation.
What happens to waves as they slow down and approach shore?
it keeps on slowing down and hitsthe shore.
Tsunamis are usually slow-moving waves?
false
How does wave energy impact the erosion of rock?
waves slow down as they approach the shoreline!
What should you do when you are approach ing a fog bank?
SLOW DOWN. If you have fog lights, turn them on.
How do astronauts slow their spacecraft down when approaching the moon?
Astronauts use small bursts from little jets pointed in the direction of travel to slow down the ship when they approach the moon.
As a driver how can you help reduce accidents at intersections?
Because more accidents happen at intersections than at any other place, you should approach any cross street or road with extreme caution. Be sure to look in both directions as you cross. Slow down as you approach, then gradually increase your speed until you clear the intersection.
How fast do Tsunamis travel in the Pacific Ocean?
When tsunamis form in the open ocean they can reach speeds of 500 miles per hour, but they are very small: usually less than three feet high. When they hit shallow water as they approach a shoreline, they slow down, sometimes to less than 50 miles per hour, but build dramatically in weight because of how heavy the water is.2nd Answereer says: In the deep open sea, tsunamis move at speeds approaching a jet aircraft (500 mph or more). As they approach the shore, they slow down. When a tsunami arrives at the shore, it usually does so as a rapidly rising tide moving at about 70 km/hour (45 mph).
What is the best way to approach a curve in a road while driving?
slow down before entering and then accelerate while going around
What is slow down?
its when something is slowing down
Do dating sites like plenty of fish slow down a computer?
No,visiting websites even when they set cookies or store temporary files don't slow computers down. if a website exploits a security flaw it could execute code that would slow down a computer.
Can you slow down electrons in order to store renewable energy sources?
There are two parts to this: "Can you slow down electrons" - yes, that's possible; electron transport moves at different speeds in different materials. "in order to store renewable energy sources" - that's essentially nonsense.
What is flapping?
Flaps are metal, slat-like things that lower on a 90o Angle that are used to slow a plane down on approach to a runways, but a raised in flight.
