While sound moves at a much faster speed in the water than in air , the distance that sound waves travel is primarily dependent upon ocean temperature and pressure.

Sound in water In water, the particles are much closer together, and they can quickly transmit vibration energy from one particle to the next. This means that the sound wave travels over four times faster than it would in air, but it takes a lot of energy to start the vibration.

In empty space, the wave does not dissipate (grow smaller) no matter how far it travels, because the wave is not interacting with anything else. This is why light from distant stars can travel through space for billions of light-years and still reach us on earth.

P waves

“A person will be just swept up in it and carried along as debris; there’s no swimming out of a tsunami,” Garrison-Laney says. “There’s so much debris in the water that you’ll probably get crushed.” Eventually, the wave will pull back, dragging cars, trees, and buildings with it.

Waves of this type are called Mega Tsunami. They are so great that they can reach several hundred meters in height, travel at the speed of a jet aircraft and get up to 12 miles (20 Kilometers) inland.

2004

Tsunami currents increase strongly in shallow water where weaker corals can be broken by the force of the tsunami. Fish and marine animals are sometimes stranded on the land after they are carried by the currents to shore. The currents also move sand from the beach onto nearby coral reefs, burying low lying corals.

The Californian coast is affected by tsunamis. La Jolla itself, where the leopard sharks aggregate, lies on the seismically active Rose Canyon Fault. The final piece of the Sharknami puzzle, then, is whether large fish could really be picked up and carried by a tsunami.

The energy of the tsunami runs through the entire depth of the ocean. It only becomes deadly when the ocean floor becomes shallow, and all that energy compresses into a smaller amount of water. Once it reached land, the raw energy of thousands of tons of water destroyed everyone and everything in its path.

If you feel more than 20 seconds of very strong ground shaking and are in a tsunami hazard zone, evacuate as soon as it is safe to do so. If you are on the beach or in a harbor and feel an earthquake-no matter howsmall-immediately move inland or to high ground. GO ON FOOT. Roads and bridges may be damaged.

2. The ocean could be affected by high tsunami and/or pressure waves in the case of a large asteroid or comet impact. Most current submarines can survive at a depth of 400 m, so they might survive long pressure spikes created by the waves above them as high as 200–400 m, but not kilometer size waves.

Should a tsunami occur and you cannot get to higher ground, stay inside where you are protected from the water. It’s best to be on the landward side of the house, away from windows. Often tsunamis occur in multiple waves that can occur minutes apart, but also as much as one hour apart.

Natural Warnings 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.

100 feet high

The largest likely tsunami to hit New York City in any scenario would be about 100 feet in height. That would flood most of Manhattan, but would be unlikely to collapse very many buildings, and if given enough warning, people could climb up several stories to save themselves.

U.S. West Coast: High to Very High The West Coast states of Washington, Oregon, and California have experienced tsunamis from as far away as Alaska, South America, Japan, and Russia. The most damaging on record is the tsunami caused by the 1964 Great Alaska earthquake.

Experts agree that a cruise ship sailing out over a body of water is not likely to feel any impacts from a tsunami’s waves. Cruise ships closer to land or at port would face an immense threat from the tsunami’s tall, high-energy and potentially devastating wave.

There would be a lot of damage, and small buildings would be destroyed, but the larger buildings would survive. Look at other areas hit by tsunamis. The large buildings survive. Take a look at pictures of Aceh, Indonesia, or Japan, or other places they have hit.

Build structures with reinforced concrete instead of wood, even though wood construction is more resilient to earthquakes. Reinforced concrete or steel-frame structures are recommended for vertical evacuation structures. Mitigate resistance. Design structures to let the water flow through.

According to Takagi, Tokyo Bay is vulnerable to a tsunami originating from the Tōkai region, which is located 100 – 150 km southwest of the Bōsō Peninsula. Major fault lines run along the stretch of the Nankai, Tōnankai, and Tōkai regions (known as the Nankai trough).