What is the tsunami?
tsunami (pronounced soo-nahm' -e) is Japanese for the "port wave", but in fact a number of waves are usually generated in the deep ocean, causing huge amounts of damage after Landfall. These shocks often occur on borderline lines where tectonic or continental plates meet. When the boards are pushing against each other, the pressure is built over time until a critical point is reached. The plates slipped and pulled around the lifting or falling of the seabed floor. Gravity forces the water column above to regain its balance. In this process, the relocated water throws outwards in a circular pattern of 360 degrees, which forms a series of radiant waves, such as huge "waves". They also differ in length from regular surface waves. Tsunami Crest can be 620 miles long (1000 kilometers), but because the amplitude or height is minimal, it is usually not possible to detect in the open ocean, even if the passage under your boat! When they spread out, it can travel so fast as IKo beam for 450 - 600 km/h (724 - 965 km/h) racing towards the coast of hundreds or even thousands of kilometers away.
As it approaches the coast and depths, the tsunami slows down, but the power it contains continues to move forward a growing amplitude or height. Waves can rise 100 feet (30 meters), but its arrival is more often more subtle. So far, the ocean can return from the shore that it will disappear from the perspective before it begins to flow back, not like a wave initially, but rather as a bathtub rises rapidly. Within a few seconds, the water level can rise 30, 60, even 100 feet (up to 30 meters) above the sea level, which becomes a rushing wall of water, which moves until 40 km / h (64 km / h) and raises everything in its way. The strength can easily crush houses or other structures, take away vehicles, uproot trees and flood the low -paying coastal areas up to 1 miles (1.6 km) to the interior.
"Riples", which flow out of the epicenter of interference, hit the coast one by one with 5 to 90 minutes between the ridges. People often assume, as soon as the water out of the first wave comes into danger, and again represents the dangerous zone just to have the next wave. Unfortunately, the first comb to produce the coast is usually not the most destructive.
Earthquakes are the most common cause of tsunami, but underwater volcanoes, landslides or even an asteroid reaching water body can cause wool tsunami by relocating large amounts of water.
Coalition of more than two dozen countries belong to the international coordination group for Tsunami War (TWS). The Group predicts that Tsunami will intervene on the basis of information collected from tidal charts, seismic sensors, historical data and ocean buoys anchored to tools that measure pressure measurements on the seabed. If data TWS indicates that it could be generated by tsunami, potentially affected areas are immediately announced. MeThe authorities then order evacuation or other necessary measures.
One of the deadliest tsunami in recorded history appeared on December 26, 2004 in the area of unprotected TWS. Surrounding countries were not members of TWS and therefore no buoy was anchored in the Indian Ocean when it hit an earthquake of 9.0. Agriculture was focused on 100 miles (161 km) off the coast of Sumatra and shattered a number of waves that destroyed Southeast Asia and killed more than two hundred thousand people. The tragedy caused India to commit to the installation of the warning system.
tsunami are often called "tidal" or "seismic waves", but these are incorrect terms. Other processes form tidal waves and not all tsunami are initiated by seismic activity, as in the case of volcanic eruptions or landslides. "Rogue Wave" is also another phenomenon that is little understood. It is a huge wave that is formed at sea, sometimes in quiet waters. Rogue Wave can reach 50 - 100 feet (15 - 30 meters) and sink a large shipIn seconds, but these waves do not reach the coast.
tsunami can occur at any time of the day, in any season and in any weather. If the earthquake hit only at sea, it may not be time for TWS to warn local populations. Therefore, if you live up to 1 mile (1.6 km) from the coastal area, which is less than 25 feet (7.6 m) above the sea level, we recommend that a considerable earthquake will be felt as soon as it passes, it will immediately move to the interior until the position of the epicenter is known.