Tsunami 2004

TSUNAMI

Tsunam occur when a major fault under the ocean floor suddenly slips. The displaced rock pushes water above it like a giant paddle,producing powerful water waves at the ocean surface. The ocean waves spread out from the vicinity of the earthquake source and move across the ocean until they reach the coastline, where there height increases as they reach continental shelf,the part of the Earth's crust that slopes,or rises,from the ocean floor up to the land.

Tsunami wash ashore with often disastrous effects such as severe flooding. loss of lives due to drowning,and damage to property.

Tsunamis can occur if an interruption occurs that causes the displacement of large amounts of water, such as volcanic eruptions, earthquakes, landslides or meteorite that fell to earth. However, 90% a tsunami is caused by an undersea earthquake. In recording the history of some of the tsunami caused by volcanic eruptions, such as the eruption of Mount Krakatoa. 

Vertical movement in the earth's crust, may result in rising sea floor or down abruptly, resulting in water balance disorders who are in it. This resulted in the energy flow of sea water, which when it reached the shore a large wave resulting tsunami. 

Speed ​​of tsunami waves depends on the depth of the sea in which the waves occur, which can reach speeds of hundreds of kilometers per hour. When the tsunami reaches the coast, its speed will be approximately 50 km / h and the energy is very damaging coastal areas in its path. In the middle of the ocean tsunami wave height is only a few centimeters to several meters, but when it reaches shore wave height can reach tens of meters due to the accumulation of past water. When a tsunami reaches shore will crawl inland away from the coastline with a range of several hundred meters to several kilometers even. 

The vertical movement can occur on the earth fault or fault. The earthquake also occurred in subduction zones, where oceanic plates under continental plates infiltrates. 

Landslides on the ocean floor and volcanic debris can also cause sea water intrusion that can generate tsunamis. The earthquake that caused the movement perpendicular to the layer of earth. As a result, the seabed fluctuates suddenly that sea water balance is disturbed it. Similarly, cosmic or meteor that fell from above. If the size of the meteor or landslide is large enough, it can happen megatsunami that reaches hundreds of meters

                            

  

                                    

After tsunami

This How Tsunami is made!! 

Baiturahman mosque 

Slow down..