On the day after Christmas 2004, a horrifying tsunami swept across the Indian Ocean.

If the earthquake is in a PTWC area of responsibility and meets a magnitude threshold, PTWC will issue a tsunami message. Learn whether tsunamis have occurred in your area or could occur in your area by contacting your local emergency management office, state geological survey, National Weather Service (NWS) office, or Instead, let the strong shaking be your warning, and, after protecting yourself from falling objects, quickly move away from the water and to higher ground. Don't stay in a low place. Tsunamis are giant walls of water. Since 1946, six tsunamis have killed more than 350 people and caused significant property damage in Hawaii, Alaska, and along the West Coast. Fact. Tsunami Fact vs Fiction. When the waves enter shallow water, they may rise to several feet or, in rare cases, tens of feet, striking the coast with devastating force.

A Tsunami watch means a dangerous tsunami has not yet been verified but could exist and may be as little as an hour away. If you are in a coastal community and feel the shaking of a strong earthquake, you may have only minutes until a tsunami arrives. That is why a small tsunami at one beach can be a giant wave a few miles away.All tsunamis are potentially dangerous, even though they may not damage every coastline they strike. Depending on the location of the earthquake, you may have a number of hours in which to take appropriate action. In general, tsunamis are not particularly threatening, as they constantly happen every day around the world, often in the middle of the ocean. Do not assume that after one wave the danger is over. Tsunamis are fast, but they still take some time to travel. Add Tip Ask Question Comment Download. Tsunamis are large ocean waves generated by major earthquakes beneath the ocean floor or major landslides into the ocean.

Tsunamis can occur any time of year, day or night.• Drop, cover, and hold on to protect yourself from the • When the shaking stops, gather members of your household and review your evacuation plan. This occurs after earthquakes, landslides, volcanic eruptions and other disasters that occur near bodies of water. Ask them to spread the message. It may seem counter productive, but the tsunami will be a lot weaker and you have a better chance of surviving. We know ads can be annoying, but they’re what allow us to make all of wikiHow available for free. Tsunamis are a series of waves caused by a massive disturbance of water. Waves caused by these earthquakes travel at hundreds of miles per hour, reaching the coast several hours after the earthquake. Tsunamis also form as a result of undersea landslides. If the earth shakes for 20 seconds or more, then you should take proper action. The last stage in a tsunami is called the run-up. They can be similar to a tide cycle occurring in just 10 to 60 minutes instead of 12 hours. A tsunami is a sort of wave-train that results from forceful interference with the ocean floor. Since 1946, six tsunamis have killed more than 350 people and caused significant property damage in … When a tsunami occurs, it can be disastrous to the point of … Initial tsunami bulletins for Pacific Rim earthquakes are issued in 10-20 minutes. Tsunamis have also occurred in Puerto Rico and the Virgin Islands. infants, elderly people and individuals with access or functional needs. The picture at the left shows how an earthquake can generate a tsunami in the overlying water. wikiHow is a “wiki,” similar to Wikipedia, which means that many of our articles are co-written by multiple authors. You should have a small room on the top floor with no windows, which is stocked with water and food. The next wave may be larger than the first one.2. /content/redcross/en/get-help/how-to-prepare-for-emergencies/types-of-emergencies/tsunamiLearn how, why and where to evacuate if conditions suggest a tsunami risk in your area.Learn how, why and where to evacuate if conditions suggest a tsunami risk in your area. The warning includes predicted tsunami arrival times at selected coastal communities within the geographic area defined by the maximum distance the tsunami could travel in a few hours. So if you know of an earthquake nearby, check a tsunami forecast and see what it says.

If you can see the wave, you are too close to escape it.• Avoid downed power lines and stay away from buildings and bridges from which heavy objects might fall during an aftershock.• Stay away until local officials tell you it is safe. There may be an earthquake or volcanic eruption which causes the tsunami. Once away from the water, listen to a local radio or television station or NOAA Weather Radio for information from the A tsunami can strike anywhere along most of the U.S. coastline. A tsunami may be coming within minutes.• Use a NOAA Weather Radio or stay tuned to a Coast Guard emergency frequency station, or a local radio or television station for updated emergency information.• Follow instructions issued by local authorities. It's when the tsunami floods the shore very fast like a large tide The third This article has been viewed 222,042 times. Tsunami warnings are broadcast on local radio and television stations and on NOAA Weather Radio. Matt Rosenberg is an award-winning geographer and the author of "The Handy Geography Answer Book" and "The Geography Bee Complete Preparation Handbook." This feature automatically alerts you when important information is issued about tsunamis or weather-related hazards for your area.

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