Tsunami Survival FAQ (surprising info that can save your life)

How to survive a tsunami step by step
1. Make sure you have situational awareness. If you feel an earthquake and you’re near the coast, there’s a chance of a tsunami in your area. Or you may notice animals acting strangely and moving away from coastal areas. At the beach, you may notice the waves oddly pull back away from the shore.

2. When you see any of these signs, quickly move to a higher elevation. If you have a radio, turn it on and listen to any important news alerts. Find a place of shelter at least 2 miles from the coast.

3. If you get caught by surprise at the beach and the water is coming up upon you, quickly run to a higher elevation, if that’s possible. You may need to climb a tree or climb the stairs of a building.

4. Do whatever you can to get out of the water as soon as possible. If you’re unable to get to Shore and you’re stuck in the water, try to find something you can use for a float because the water will pick up a lot of debris that you can use to hold your head above the water as the tide comes in.

5. Tsunamis come in multiple waves, so if you survive the first wave, move to higher ground and stay there.

How to evacuate in the face of a tsunami
You need to gather all your family members and you need to leave together if possible. Give your family clear and simple instructions, especially your kids who may not understand what a tsunami is. Have a plan that if you get separated, you can meet back together at a certain location. Use your cell phones for communication between each other and if you do have to split up, try to make sure you have one adult with each child. Listen to the media and what the authorities are telling you to do and where to go. In preparation, you should definitely learn how to swim because drowning and being crushed by debris are the two most likely causes of death due to tsunamis.

What will you need to survive a tsunami
1. You need a bug out bag. In your bag, you should have enough supplies for your family for 3 days which includes emergency food, some drinking water, a filter to purify more water, flashlights, a radio, and first aid supplies.

2. You need an evacuation plan. If your house is within two miles of the coast, then you need a shelter that is in farther than 2 miles from the coast and at least 100 feet in elevation. Along with this, you need an escape route to get to the shelter that doesn’t put you in greater danger. A coastal highway is not the best route for escaping a tsunami.

3. You need continually updated information, from the media and the government. Most nations which experience tsunamis have tsunami alerts to warn the people that a tsunami may be coming. Take the actions that the authorities recommend as soon as practical.

How likely are you to survive a tsunami if you stand on the shore and do nothing
In Japan, they have studied how tsunami wave height affects your chance of survival:
1. If the water level rises by 30 cm, then your chance of death is only 0.01%.
2. If the water level rises by 50 cm, your chance of death is about 5%
3. If it increases to 70 CM, your chance of death is 71.1%
4. If the tsunami raises the water level by 100 CM, then your chance of death is 100%.

The danger is not just the absolute height of the water, it also includes the speed and power of the water when it hits you. The wall of tsunami water will hit your legs at about 15 miles per hour, knocking you down in the water and rolling you around like you are in a washing machine. It will carry you onshore and you will hit debris. It may also carry you offshore again as the water recedes, where injured and disoriented, you may drown. Basically, a 1-meter rise of the sea in a tsunami is going to kill you. Don’t stand around on the beach and watch a tsunami roll in!

Remember though, it’s not just the beach area that’s dangerous during a tsunami. The water will continue to move up land and it prefers to move through the rivers which are the areas of least resistance. The rivers can Crest very high and then spill out even a mile upstream into the lower elevated areas. So, if you’re within a mile of the coast, you are in danger of any powerful tsunami. Remember, a one-meter high wave can kill you, even a mile away from the coast. It’s better to be safe than sorry, so get at least a hundred feet above sea level and at least two miles away from the coast to escape a tsunami. From there you should be safe.

Can you outrun a tsunami

In the deep ocean, a tsunami can travel at 500 km an hour. However, it will slow down as it rises up the shoreline. In order to outrun a tsunami near the shore, you have to run between 10 to 20 miles per hour, you need to be running uphill, and you need to keep running for one or two Miles just to be safe.

Can you survive a tsunami underwater
If you are diving underwater when a tsunami strikes, you are in great Danger. If you’re deep in the water, then the occurrence will become like a washing machine turning you up and down, and spinning you around. The wave may force you to Ascend very quickly and then you will get decompression sickness.

Also, the water doesn’t move smoothly, it can move chaotically and unpredictably, and this will disorient you and separate you from any diving group that you’re apart of. If you’re too close to the surface, the tsunami wave can drag you all the way onto the Shore and hit you may hit debris or obstructions, like trees and hotels. On the other hand, there are stories of divers who have survived being underwater during a tsunami. So you can survive underwater if you’re lucky.

Can you survive a tsunami by swimming, canoe, rowboat, or surfing
If you are near the shore when a tsunami strikes, you should head for land immediately. On the land run uphill as fast as possible until you get 2 miles inland or up to 100 meters in elevation. If you cannot make it quickly to shore and then a higher elevation, your best chance to survive is to swim or paddle toward the horizon and reach deeper waters. If you can reach an area of the sea where the ocean floor is relatively flat, you may survive, just as big ships do.

Can a ship survive a tsunami
A ship out in deep water will not feel many problems with a tsunami because the wave height will only increase a meter or a few meters out in the deep sea. But if the ship is at Port, it will feel the full force of the tsunami and get tossed around like a beach ball. It’s often amusing to see photos of ships that have been thrown many meters onto the land due to the power of a tsunami. But not so amusing to experience this in person.

Can a submarine survive a tsunami
A submarine is designed to withstand high-pressure underwater and since most submarines can dive down to 400 meters below the sea, having an extra few meters above them as the tsunami passes is not a difficult proposition. But if it’s like one of those Disaster Movie tsunamis that are a mile high, then no, nothing in the sea can survive that.

How to survive a tsunami on an island
If you see a tsunami while you are on an island, run to the highest point you can reach. Then hold on to something sturdy, such as a palm tree. You might even want to climb a tree. Above all, don’t let the wall of water knock you down- that is death.

Can you survive a tsunami underground
An underground shelter or an underground tsunami shelter would not be a very effective shelter. First off, if your shelter is on a high ground, you don’t really need it because the water is not going to get to you. Secondly, if your underground shelter is on low ground, the water will certainly come into an underground area and drowned you. Even, if somehow you were to make an underground chamber that was watertight and had a sustainable air supply, you still run the risk of having debris cover up your entrance and making it difficult or impossible to get out, once the tsunami passes.

Can fish, sharks, whales, and dolphins survive a tsunami
Yes, all creatures in the deep sea can survive a tsunami with minimal impact. A tsunami, far offshore, only raises the sea level by about a meter, so it’s barely noticeable. Unfortunately, any sea life near the shore will be wrecked by a tsunami.


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