What are tidal waves?
A tidal wave, from the Latin mare, sea, and Motus movement, is a marine movement, a wave or series of waves that are generated due to the push of a large body of water that is displaced by a vertical force. The term tsunami was established in a congress in 1963.
These phenomena are generated when a vertical disturbance, either upwards or downwards, causes the water from the coast to withdraw. At the site of the disturbance, a rose is formed that will move back towards the coast, when finding shallow depths the rose takes high heights causing large waves. The disturbances that can generate tidal waves are volcanoes, meteorites, landslides on the coast, or on the seabed, and large explosions. A tsunami can happen after about 10 or 20 minutes after the disturbance occurred. Any ocean can present a tidal wave, although they are common in the Pacific Ocean due to the presence of subduction faults such as the one found between the Nazca and South American plates. These types of faults generate powerful earthquakes.
A tsunami, from the Japanese TSU: port or bay, NAMI: wave is a large wave or set of high altitude waves produced by a vertical disturbance of various kinds that have occurred in the sea. 90% of tsunamis are produced by earthquakes, which is why they are called tectonic tsunamis. Before, tsunami were the waves produced by hurricanes and storms, which also entered inland on the coast. suggested video:
Tidal wave vs Tsunamis
Difference between Tsunamis and Tidal Waves
The fundamental difference between both terms is technical according to the Federation of Urgent Spanish:
- A tidal wave is an earthquake whose epicenter is at the bottom of the sea.
- A tsunami is a giant wave produced by a tsunami or other type of disturbance.