Tsunamis and Earthquakes

For science class we had to learn about one of the following: Earthquackes, tsunamies, and hurricanes, and then write an essay about them which is about 600-2,000 words. For my essay I chouse to write about tsunamies. Tsunamies can be different. Some can make damage, and some can only make a liitle water on the streets.

Tsunamis are waves that are created by oceans or other bodies of water, by eaarthquakers, landslides, volcanic eruptions or meteorite impact. The can make huge destructions when they reach and hit the coastlines. Tsunamies can travel very fast, as much as up to 700 miles per hour, but they are only about one meter high in the open ocean. But when they get to the coasline they can be a series of waves up to 30 meters high! The tsunamies mostly occur, when the tectonic plates colide, and when one plate goes up, it makes a big seismic wave, like we did with our lab, but just from underneath, and a lot bogger. The tsunami isn’t that high in the ocean, its only about one meter, and if a ship goes over it , it probably wouldn’t even feel it. But as it gets closer to the coastline, it gets bigger. It lifts the wave up, but it doesn’t break on the beech, it becomes a monut of water that floods the place, and can destroy a lot of things, and kill a lot of people as we saw in Indonesioa in 2004 and in Japan in 2011. Around 80% of all the tsunamies that happen on earth are in the Pacific Ocean. Most offenly they are occurred at the borders of the Pacific ocean and the Ring of Fire. This is because at the Ring of Fire 90% of the worlds earthquackes happen there, and they are whatmostly cause the tsunamies to occur. The tsunamies damage can be huge. Once the tsunami floods the city, it can continue to cause damage for weeks. It can cause a lot of damage such as death, injuries, millions of dollars in financial loss and a lot more. The effects are actually continued for many years after the natural disaster hit the city.`Tsunamies are predicted by a siesmometor. When this machine detects a earthquake under the ocean, it signals the coaslikes the tsunami could head for. But the machine is not perfect, because not all earthquackes make tsunamies, but its always better to get away just in case if the tsunami is really going to happen in their area, or other areas. After an earthquake occurred in a certain area, you must calculate the energy of this earthquake. From the seismograph, you can collect data from this earthquake. Like this, you can calculate the location, depth and strength.What is good about this is that it can reveal clues about the nature of the rocks the waves were passing. The data records the motion of the mass. This makes a series of squiggly lines, that look like waves we have done in class.For big tsunamies, there is only one benefit, which is economical. Imagine if you have a house that you need to destroy, and there is a big tsunami coming, it would be good if that house was torn apart and took into the sea. This would be good for the government because they wouldn’t have to pay money to destroy that house or building, because the tsunami did it for them, but it would be bad for the environment because it would pollute the environment. 
In 2004, an earthquake occurred in Indonesia that was marked 8.8 in the richter scale. And only a few minutes later a big tsunami hit the same area. This made big damages to the city. It also killed a lot of people. To be percice, it was around quorter of a million people that died during this time. Something similar happened in Japan last year in 2011 whan a big earthquake also happened which was also around 8.8 on the richter scale. It aslo followed with a big tsunami wave. This also killed a lot of people. But wats worse, it also damaged a nuclearactive power plant that made equipment failures, nuclear meltdowns, and release of nuclearactive materials in Fukushima.