Tsunami is a terrifying natural phenomenon in its power. They can arise for different reasons, but invariably one thing – collapsing on the coast, tsunami waves can cause monstrous in scale destruction.
Most often (approximately 85% of the time), a tsunami occurs due to an underwater earthquake or an underwater volcanic eruption, but there are other causes – for example, landslides or sudden changes in the atmosphere.
Before a tsunami strike you can observe a rapid and strong ebb.
Very rarely tsunami is a single wave, usually a whole series of waves.
The ancient Greeks in the 4th century BC associated tsunami with underground earthquakes.
The smaller the depth, the higher the tsunami wave.
Theoretically a fairly large meteorite, striking the ocean or the sea, is capable of producing an extremely devastating tsunami.
In 2004, the tsunami in the Indian Ocean killed more than two hundred thousand people.
Palm trees on the shore are able to withstand the shock of a tsunami wave.
The tsunami that hit Japan in 2011 was the most costly disaster in the history of the world.
Tsunami, bringing with it a large amount of salt, can poison it with freshwater sources and groundwater.
The speed of a tsunami wave can reach 800-900 kilometers per hour, but when approaching the shore it drops to 80-100 kilometers per hour.
Tsunamis are found in every ocean, but four out of five occur in the Pacific.
Especially devastating tsunamis can reach sixty meters in height.
The distance between tsunami shock waves can reach thousands of kilometers.
The length of the tsunami wave can be as much as ten kilometers, and several hundred.
During the tsunami, all layers of water move, including near-surface water. That is why tsunami waves are an order of magnitude stronger and more destructive than surface storm waves.
In 1946, a submarine atomic explosion conducted during the military tests caused a tsunami of thirty meters high, but the wave nearly disappeared ten kilometers from the site of the explosion.