The indian ocean earthquake and tsunami

Since a tsunami is generated at the source of an underwater earthquake, there is usually time -- from 20 minutes to two hours -- to get people away as it builds in the ocean.

Weissel said in an interview. Helicopter surveys showed entire settlements virtually destroyed with destruction miles inland with only some mosques left standing.

Their seismic moments can account for a significant fraction of the global seismic moment across century-scale time periods. CLAIM There is verifiable evidence that a large earthquake will strike the Indian Ocean and cause a deadly tsunami before the end of Thus, the state of Kerala was hit by the tsunami despite being on the western coast of Indiaand the western coast of Sri Lanka suffered substantial impacts.

They are often wrongly called "Tidal Waves" and have nothing to do with tides. An oceanic trench several kilometres wide was exposed in the earthquake zone. This quickly elevated the height and increased the speed of waves, destroying the nearby Indonesian town of Lhoknga.

Tsunami devastates Indian Ocean coast

The Indian Ocean earthquake came just three days after a magnitude 8. Strong earthquakes cause a displacement of the crust. The last major tsunami The indian ocean earthquake and tsunami caused by the Krakatoa eruption of It took a relatively long time to reach Struisbaai at the southernmost point of Africa, probably because of the broad continental shelf off South Africa and because the tsunami would have followed the South African coast from east to west.

A local resident living at Banda Aceh stated that the wave was "higher than my house". In February scientists revised the estimate of the magnitude to 9. This is not the first time Kalayil has turned up in the news.

The survey, conducted using a high-resolution, multi-beam sonar system, revealed that the earthquake had made a huge impact on the topography of the seabed. These are the first such observations ever made.

If the theory was correct, the ocean floor in the eastern part of the new plate boundary should be compressed, buckled, cracked and eventually thrust upward along the cracks. It was in October,that he made this prediction, which was firmed up on January 16, The new research suggests that starting about 8 million years ago, the accumulated mass became so great that the Indo-Australian Plate buckled and broke under the stress.

A study estimated a magnitude of Mw 9. Person also said that because large tsunamis, or seismic sea waves, are extremely rare in the Indian Ocean, people were never taught to flee inland after they felt the tremors of an earthquake.

Sincethe only earthquakes recorded with a greater magnitude were the Great Chilean earthquake magnitude 9. Thanking You, Yours Sincerely, Babu Kalayil First and foremost, earthquake prediction — at least when limited by things that have a scientific basis — is one of the major as-yet- unrealized dreams of seismology.

In the open ocean, they go unnoticed but once they reach shallower waters they slow down and begin to crest. But a lot of these people in the area where this occurred -- they probably had no kind of lessons or any knowledge of tsunamis because they are so rare.

These tales and oral folklore from previous generations may have helped the survival of the inhabitants. A major aftershock magnitude 7. Geological Survey sees no evidence of a causal relationship between these events.

2004 Indian Ocean earthquake and tsunami

The only other recorded earthquakes of magnitude 9. The tsunami killed at leastpeople across a dozen countries, with IndonesiaSri LankaIndiaMaldivesand Thailand sustaining massive damage. The Indian Plate is part of the great Indo-Australian Platewhich underlies the Indian Ocean and Bay of Bengaland is moving north-east at an average of 6 centimetres per year 2.

All of them are believed to be greater than magnitude 9, but no accurate measurements were available at the time. Geological Survey had no access to government or scientific information in the areas affected by the latest tsunamis. For example, the folklore of the Onges talks of "huge shaking of ground followed by high wall of water".

More over this effect will even replaced the boundary of sea shore. More critically, if a separate Australian Plate were rotating counterclockwise in relation to a separate Indian Plate, the amount of compression should increase rapidly and systematically from west to east across the Central Indian Ocean.

The images were collected during two separate research voyages that each spanned the entire deformed zone from north to south. The aftershock would be considered a major earthquake under ordinary circumstances, but is dwarfed by the mainshock. The worlds largest recorded earthquakes were all megathrust events and occur where one tectonic plate subducts beneath another.

The India Plate sinks deeper and deeper beneath the Burma Plate until the increasing temperature and pressure drive volatiles out of the subducting plate. Coastal villages were destroyed by the tsunami waves.

Massive Indian Ocean Earthquake and Tsunami Expected by the End of 2017?

This Vigerous earth quake can be shaked the entire coast of the Asian continental areas. It has been theorized that the tsunamis were focused and directed at long ranges by the mid-ocean ridges which run along the margins of the continental plates.Claim: There is verifiable evidence that a large earthquake will strike the Indian Ocean and cause a deadly tsunami before the end of False.

Indian Ocean tsunami of 2004

The Indian Ocean tsunami caused waves as high as 50 feet (15 meters) in some places, according to news reports. But in many other places witnesses described a rapid surging of the ocean, more like an extremely powerful river or a.

Above: Waves heights are greatly exaggerated relative to water depth in this computer model of the December 26,Indian Ocean tsunami (frame from an animation that will soon be posted at URL USGS Tsunami and Earthquakes Web page).

Image shows the tsunami 30 minutes after it was triggered by the earthquake. On this day, ten years ago, a magnitude earthquake struck beneath the Indian Ocean near Indonesia, generating a massive tsunami that claimed more thanlives in fourteen different countries, one of the deadliest natural disasters ever recorded.

The Indian Ocean earthquake occurred at UTC on 26 December, with an epicentre off the west coast of northern Sumatra and a magnitude of – (M w) and a maximum Mercalli intensity of IX (Violent).

It was an undersea megathrust earthquake caused by rupture along the fault between the Burma Plate and the Indian Plate.

In the aftermath of the disaster, the Indian Ocean Tsunami Warning and Mitigation System was formed to detect seismological changes and provide warnings of .

The indian ocean earthquake and tsunami
Rated 3/5 based on 4 review