Essay About Cause Of This Tsunami And Coastal Tide Gages.The Earthquake

The Tsunami: Boxing Day 2004
The Tsunami: Boxing Day 2004280,000The epicentre was 160km off the coast of Sumatra. Splay faults, or secondary “pop up faults”, caused long, narrow parts of the sea floor to pop up in seconds. This quickly elevated the height and increased the speed of waves.It was initially documented as 8.8 but later evidence shows it was more like 9.2.Tsunamis are detected by open-ocean tsunami buoys and by coastal tide gages.The earthquake triggered a tsunami as it elevated the ocean causing the speed of the waves to be increased and then causing the tsunami.310-620 mph.The tsunami, like all others, behaved very differently in deep water than in shallow water. In deep ocean water, tsunami waves form only a small hump, barely noticeable and harmless, which generally travels at a very high speed of 500 to 1,000 km/h (310 to 620 mph); in shallow water near coastlines, a tsunami slows down to only tens of kilometres per hour but, in doing so, forms large destructive waves.Disturbances along the coastline lasted a couple of days.About 10 Meters.Debris was moving inland with the waves.2km inlandIt was swamped meaning it was obliterated.A reason would be that even though they were only a few kilometres away it will still reduce the damage felt by a large amount. As the first tsunami weakened the train and the tracks on leaving small foundations making it easier for the second smaller tsunami to cause damage.The death toll in The cause of this tsunami was a volcanic eruption from Krakatoa and caused significant damage to surrounding areas.The earthquake and tsunami that struck on Boxing Day 2004 was an extremely powerful earthquake with it reportedly being 9.2 which with the state of the buildings around the stricken area was devastating for all involved.The houses and other buildings are poorly built meaning they are easily damaged and destroyed also they are poorly educated in these area meaning they have no clue when it comes to ‘what to do’.The 4 causes of tsunamis are:EarthquakesLandslidesVolcanic EruptionsExtra-terrestrial CollisionOff the coast of Sri Lanka.The main section of the world that will become effected would be the countries around the pacific but it could also reach countries in South America and Africa.The death toll was more in 2004 as there wasn’t the education about what can happen when an earthquake, however in Japan they had earthquake drills so people were aware of what was going on, also buildings were like shacks at this time whereas there was a number of earthquake proof buildings in Japan.