Abnormal ocean activity, a wall of water, and an approaching tsunami create a loud "roaring" sound similar to that of a train or jet aircraft. If you experience any of these phenomena, don't wait for official evacuation orders.

2021年12月2日 · What do I do when an alarm sounds or I see signs of a possible tsunami? If you are in a hazard zone and you feel a long, strong earthquake (one that lasts for 20 seconds or more) and/or receive a tsunami warning, it is important to: Remain Calm. If there is an earthquake, drop, cover, and hold on during the earthquake.

Fortunately, a few natural warning signs can help you understand that a tsunami is approaching and they can be easily recognized. They include: Unusual sea-level fluctuations: a noticeable rapid rise or fall in coastal waters is a sign that there may be a tsunami approaching.

2007年4月2日 · National Geographic News looks at how the killer waves are caused, what the warning signs are, and how to respond when a tsunami threatens. A tsunami is a series of great sea waves caused...

2024年3月21日 · Learn the signs of a potential tsunami, such as an earthquake, a loud roar from the ocean, or unusual ocean behavior, such as a sudden rise or wall of water or sudden draining of water showing the ocean floor. Know and practice community evacuation plans. Some at-risk communities have maps with evacuation zones and routes.

In addition to tsunami alert messages issued by warning centres and national authorities, tsunamis may be accompanied by natural warning signs and recognizing any of these signs could save your life! FEEL the ground shaking severely or for a long time? SEE an unusual disappearance of water, or an oncoming wall of water?

For your safety, know the potential warning signs of an incoming tsunami: a strong earthquake that causes difficulty standing; a rapid rise or fall of the water along the coast; a loud ocean roar. When you’re in a coastal area, it’s important to keep alert for messages from local officials, such as lifeguards, police, The US Tsunami Warning ...

2023年6月29日 · This is a tsunami’s most noticeable natural warning sign that signals a danger to life and property is imminent. Tsunamis can look and behave differently. Local tsunamis pose the greatest threat as they originate close to coastal areas with little-to-no warning or evacuation time.

GROUND SHAKING, a LOUD OCEAN ROAR, or the WATER RECEDING UNUSUALLY FAR exposing the sea floor are all nature’s warnings that a tsunami may be coming. If you observe any of these warning signs, immediately walk to higher ground or inland. A tsunami may arrive within minutes and damaging surges are likely to occur for at least 12 hours or longer.

2024年6月17日 · What are the 5 signs a tsunami is coming? 1. Strong or long earthquakes. 2. A loud roar (like a train or an airplane) from the ocean. 3. Unusual ocean behavior, such as a fast-rising flood or a wall of water. 4. Sudden draining away of the water, showing the ocean floor, reefs, and fish like a very low tide. 5.