When an earthquake, volcano, underwater explosion, or a landslide happens under the water, it can trigger a tsunami. The waves can become disturbed in the ocean or in a large lake. When a tsunami occurs, there are large waves that are breaking waves and as the water level increases, it can cause flooding and violent damages.
Most tsunami waves are very large in weight and height and mostly happen on the coastline, causing damage, destruction, and even death.
Natural disasters like this cause so much damage because unlike normal waves that flow in circles, a wave from a tsunami moves the water in a straight path and this causes a huge wave.
They move very fast at around 475 miles per hour if the water is 15,000 feet deep. If the water is 100 feet deep, it travels at around 435 miles per hour.
A tsunami is a succession of waves created in a body of water from an earthquake, landslide, meteorite impact, or volcanic eruption.
Catastrophic events like a tsunami disaster happen on an average of twice a year. Every 15 years or so there seems to be a tsunami that’s larger and causes a lot of damage.
When an earthquake happens out to sea, a tsunami can follow.
With a strike-slip earthquake, which means an earthquake that goes horizontally, it causes 10% to 15% of the tsunamis that happen around the world.
With a vertical earthquake, there will be a bigger chance of there being a tsunami.
With a strike-slip earthquake, the only people that are usually affected by this are the people that live right near the water.
With a vertical earthquake tsunami, these cause more damage in more places.
The word tsunami is a word that originated in Japan “tsunami” means “harbor wave.”
When a tsunami strikes a shoreline, it transforms. Moving from deep water and traveling into shallower water, it slows. But, as the tsunami’s speed weakens as it travels into shallower water, it gains height.
This shoaling effect causes the tsunami to grow and possibly reach several meters or more in height near the coast. The surge will appear as a fast-rising or falling tide, or a series of breaking waves.
Since tsunamis travel so fast, they can race across the ocean to land.
Sometimes, the ocean will behave like a vacuum and will suck the water from the shore and from beaches.
When this happens, people can see fish and other sea life just flopping because it happens so fast.
Then the wave will blast back to the ocean shore. A minute later, another one can happen, and then another. This can happen for over an hour.
Sometimes though, there is an hour between the massive waves.
Most tsunamis happen where there are a lot of earthquakes and volcanoes that happen under the water. This mostly happens in the Pacific Ocean.
Some countries that are close to the coast such as Chili, Japan, and the United States can all experience tsunamis.
There is no way that a tsunami can be predicted.
Regions in tsunami danger zones have early warning systems in place to monitor earthquake activity and the hight of ocean waves this includes offshore buoys measuring wave height and lengths.
The Pacific Tsunami Warning System is in Hawaii and monitors eruptions and sends tsunami warnings if needed.
Having a tsunami alert system in place can advise people to evacuate if needed and reduce casualties.
If you are close to the shore and a tsunami is coming, you need to leave the area and find higher ground.
If a tsunami happens, here are some tips to follow: