Causes Of Earthquake

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It caused massive floods and oil spills, which made the water undrinkable. Most of the people were not satisfied with the government because they were taking too much time to take decisions and they took too much time helping all those people that suffered from the storm. More than Hundreds of thousands of people that used to live in places like Louisiana, Mississippi or Alabama had to move to other places as their house were destroyed, and experts believe that Katrina caused 100$ of damage. (2015,History) A tsunami usually starts as there are series of waves that creates surges of water, above sea level. Those amazingly big water walls cause enormous destruction when they reach land. These 30 meters waves are typically caused by earthquakes.…show more content…
However, the place on the earth’s surface where the earthquake started is called the epicenter. Earthquakes can also be called tremblors. They can be really destructive. Each day, up to more than a thousand earthquakes occur around the world. Usually, most of them are small tremblors. Around 80 percent of the planet’s earthquakes happen near or along the famous rim of the Pacific Ocean. The rim of the Pacific Ocean is also called the “Ring of Fire because there is a lot of volcanic activity. Most of the earthquakes happen in fault zones, that is where tectonic plates collide or slide against each other. Most of the times, those impacts aren’t noticeable on the surface, but, however, stress can start to build up between the plates. When the stress is quickly released, it sends huge vibrations. They are called seismic waves that go often hundreds of miles through the rock and go up to the surface. Other earthquakes can occur far away from fault zones when the plates are stretched or squeezed. When an earthquake happens, scientists have to designate a magnitude rating to the quake. The rating is based on the strength and the duration of the quake’s seismic waves. A quake which has a rating from 3 to 5 is considered a minor or light earthquake. When the tremblor reaches the rating of 5 to 7, then it is considered to be moderate to strong. As an earthquake reaches the rating of 7 to 8, then it is a major quake. Finally, when it reaches 8 or more , then it is considered as great. An earthquake with

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