Nama : Melyana Dewi
Npm : 14210353
Kelas : 4EA16
Tsunami
Tsunami can as volcanic eruptions, earthquakes, landslides
or meteorite that
fell to earth. However, 90% is due to the tsunami earthquake under
the sea. 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, can lead to the ocean floor rises or falls abruptly, resulting in water balance disorders that are in it. This resulted in the energy flow of sea water, which when it reached the coast into a large wave resulting tsunami.
Tsunami wave speed depends on the depth of the sea in which the waves occur, where the speed can reach happen if an interruption occurs that causes a large amount of water displacement,
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 midst of the sea wave height of the tsunami only a few centimeters to several meters, but when it reaches shore wave height can reach tens of meters due to water buildup period. When the tsunami reaches shore will creep in mainland away from the coastline with a range of several hundred meters to several kilometers even.
This 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 interference seawater can generate tsunamis. The earthquake that caused the movement perpendicular to the layer of earth. As a result, heaving sea floor abruptly so that the balance of sea water above it disturbed. Similarly, cosmic or meteor that fell from above. If the size of the meteor is large enough or landslides, can occur megatsunami which reaches hundreds of meters.
The earthquake that caused the tsunami
• An earthquake centered in the middle of the sea and shallow (0-30 km)
• An earthquake with a strength of at least 6.5 on the Richter Scale
• An earthquake with a reverse fault or the fault pattern down
Vertical movement in the earth's crust, can lead to the ocean floor rises or falls abruptly, resulting in water balance disorders that are in it. This resulted in the energy flow of sea water, which when it reached the coast into a large wave resulting tsunami.
Tsunami wave speed depends on the depth of the sea in which the waves occur, where the speed can reach happen if an interruption occurs that causes a large amount of water displacement,
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 midst of the sea wave height of the tsunami only a few centimeters to several meters, but when it reaches shore wave height can reach tens of meters due to water buildup period. When the tsunami reaches shore will creep in mainland away from the coastline with a range of several hundred meters to several kilometers even.
This 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 interference seawater can generate tsunamis. The earthquake that caused the movement perpendicular to the layer of earth. As a result, heaving sea floor abruptly so that the balance of sea water above it disturbed. Similarly, cosmic or meteor that fell from above. If the size of the meteor is large enough or landslides, can occur megatsunami which reaches hundreds of meters.
The earthquake that caused the tsunami
• An earthquake centered in the middle of the sea and shallow (0-30 km)
• An earthquake with a strength of at least 6.5 on the Richter Scale
• An earthquake with a reverse fault or the fault pattern down
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