Why of Tsunami
Tsunamis are ocean waves caused by seismic usual because of the earthquake, when the tectonic plates beneath the ocean floor collide. The earthquake is sometimes not directly cause a tsunami, but the quake caused landslides under the sea. Landslides can cause a lot of water rising above the sea level, thus forming giant waves in the shallow water at the shoreline. Besides a strong volcanic eruption may also cause tsunamis. Review of what causes earthquakes, visit http://www.whatcausesearthquakes.com/what-causes-earthquakes.htm
An earthquake under the sea is the most common cause of tsunamis. For the tectonic plates beneath the ocean floor sometimes rub or collide against each other, causing a large amount of energy at the same regardless. Heat, energy, and the pressure exerted from below causes a spike large volume of water.
Plate tectonics heavier trying to move away from the bottom plate tectonics lighter. Tsunamis occur when the tectonic plates that heavier stuck with a lighter plate, so that the resulting pressure is very large when the plates are heavy pushing plates lighter to the side and down.
When the plates are lighter continue to be attracted downwards until it reaches the limit, the plates will suddenly return to its original area, causing an explosion upward pressure. This pressure pushes the water up and form a giant wave that we call tsunami.
Ring of Fire ( Ring of Fire )
tsunami could be so strong that they can take over thousands of kilometers, which is ultimately up to the beach. Most tsunamis occur in the Pacific Ocean, which is the largest water surface of the earth. The ocean covers one third of the entire surface area of the earth, and surrounded by deep trenches, island arc, and the mountains. Because this area is prone to earthquakes, this area is commonly called the Pacific Ring of Fire or the Pacific Ring of Fire.
Two-thirds of the Earth’s surface is ocean, because it was a consequence of strong undersea earthquake can be catastrophic. For example, the earthquake in Sumatra island in 2004, this earthquake had a strength of 9.2 on the Richter scale. The earthquake caused a series of tsunamis that hit Indonesia, India, Madagascar, and even in Ethiopia. It was the worst tsunami disaster of all time-consuming more than 283 thousand casualties.
Great Meteor and underwater nuclear testing can also cause tsunamis. Scientists have not yet found a way to prevent the occurrence of the tsunami, but certain steps have been taken that allow us to predict whether a tsunami approaches a certain area through the identification of satellite and ocean wave readings.