Tsunamis, alongside other natural disasters like tornadoes, earthquakes, fires and floods, have been happening for a long time the word “tsunami”, which is japanese for ‘big wave “, can be defined as a series of huge powerful waves that are caused by underwater disturbances most of the. A tsunami is a large ocean wave usually caused by an underwater earthquake or a volcanic explosion tsunamis are not tidal waves tidal waves are caused by the forces of the moon, sun, and planets upon the tides, as. Tsunami waves travel at speeds of 300-600 miles per hour (483-966 km/hr), and the first wave may not be the largest one although most tsunamis are caused by earthquakes in oceanic and coastal regions, they can also be triggered by underwater landslides and submarine volcanic eruptions that are powerful enough to displace the surrounding water. On 26 december 2004 a tsunami occurred in the indian ocean it was the result of the indio-australian plate subducting below the eurasian plate it was caused by an earthquake measuring more than magnitude 9 the earthquake caused the seafloor to uplift, displacing the seawater above in open ocean. Those tsunamis were of the ordinary type, seismic tsunamis caused by earthquakes that suddenly lift or drop the seafloor but a second type of tsunami can arise from. The typical cause is an earthquake under the ocean floor tsunamis can also be caused by huge landslides into bodies of water, or by the impact of a large enough meteorite into an ocean or very large body of water. The recent tsunami of december 2004 in the south asian region is the worst ever in recorded history apart from the trail of death and destruction of human property that it left behind, it also caused widespread destruction of ecological habitats with lasting effect on the populations of several species.
Volcanic tsunamis can result from violent submarine explosions they can also be caused by caldera collapses, tectonic movement from volcanic activity. Tsunamis are caused by sudden movements of the earth that happens under the sea often the most destructive tsunamis are caused by earthquakes but causes can also include volcanic eruptions, landslides or even a comet hitting the sea landslides cause tsunamis when the debris falls into the water. Earthquake effects (shaking, landslides these waves are typically more devastating to the coastal region than the shaking of the earthquake that caused the tsunami. Causes of a tsunami tsunamis can be caused by a number of natural phenomena including earthquakes, volcanic eruptions, or landslides even an explosion, whether natural or man-made, can cause a tsunami it is also possible for space debris, such as a meteorite or an asteroid, to cause a tsunami.
Tsunamis, also called seismic sea waves or, incorrectly, tidal waves, generally are caused by earthquakes, less commonly by submarine landslides, infrequently by submarine volcanic eruptions and very rarely by a large meteorite impact in the ocean. The effects of a tsunami are devastating they are one of the world's worst natural disasters that can hit a country tsunami damage is first caused by the immense force of the tidal wave hitting the shoreline tsunami flooding then continues to cause damage for several more weeks the initial.
One of the documented distant tsunamis to affect the caribbean impacted on november 1, 1755 this tsunami was caused by the 87 magnitude great lisbon earthquake in the azores fracture zone (near portugal. The amount of energy and water contained in a huge tsunami can cause extreme destruction when it strikes land the initial wave of a huge tsunami is extremely tall however, most damage is not sustained by this wave most of the damage is caused by the huge mass o.
The good friday 1964 alaska earthquake produced a local tsunami of 100' it also caused seiches in the louisiana delta that damaged fishing boats. Free essay: what exactly are tsunamis tsunamis are immensely strong, long length and long period sea waves tsunamis have caused much grief and sorrow for. Tsunamis are often triggered by earthquakes in 2009 a tsunami in the indian ocean caused mass devastation impacting socially, economically and. Not all earthquakes generate tsunamis to generate a tsunami, the fault where the earthquake occurs must be underneath or near the ocean, and cause vertical movement of the seafloor (up to several meters) over a large.
Extracts from this document introduction ï»¿cause and effect of the japanese tsunami the word tsunami is japanese for harbor wave they often happen in japan and about 195 have been recorded. A tsunami is a catastrophic ocean wave that is usually caused by a submarine earthquake, an underwater or coastal landslide, or the eruption of a volcano.
A tsunami (pronounced 'soo-naam-ee') comes from the japanese word for 'harbor wave' a tsunami is a series of huge waves that strike a coast the waves are. What exactly are tsunamis tsunamis are immensely strong, long length and long period sea waves tsunamis have caused much grief and. What is a tsunami a tsunami is a series of gigantic water waves that causes a surge of water onto land. The causes of a tsunami are the plates when they shift against each other in a divergent plate boundary, the plates move away from each other where there is a convergent plate boundary.