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Earthquakes occur because of ____
Earthquake and physics
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Recommended: Earthquakes occur because of ____
An earthquake occurs when there is a shaking of the Earth, caused by a buildup of energy in volcanic or tectonic form (“Earthquakes”). Essentially, an earthquake results from sections of the Earth moving, causing slippage. When two chunks of the Earth slip past each other, the point at which this happens is called the fault plane. In fact, an earthquake begins in the hypocenter beneath the Earth’s surface. Next, located right above the hypocenter is the epicenter (Wald). And finally, the main, and most important thing to remember about earthquakes is that they are random, and extremely hard to predict (“Earthquakes”).
Earthquakes happen when two tectonic plates touch each other. When those plates experience tension and friction, they lock up, preventing any kind of movement. As soon as the pressure is suddenly released, an earthquake can occur. The phenomenon of rock breaking along a fault can cause the ground to shake because of the release of energy being given off in the form of seismic waves (“Earthquakes”).
Plates on the outside layer of the Earth, called tectonic plates, are always moving and are roughly one hundred kilometers in thickness. In this case, an earthquake can happen as a result of the stress and movement caused by the plates rubbing back and forth. An earthquake can happen at measurements as great as seven hundred kilometers in length, when tectonic plates bump into each other. On the other hand, California for example, a place where its tectonic plates move past one another, experience shallower earthquakes. This type of earthquake is a result of the tectonic plates resisting and moving past one another along the ridges under the sea (“What causes earthquakes?”).
Intraplate earthquakes are earthquakes that do n...
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...ct so many people per year. In knowing what earthquakes are, people can learn to recognize the signs, and better educate themselves. Through grasping how an earthquake occurs, and where they happen in the world can better help people understand earthquakes as a whole. Also, in being mindful on how earthquakes are measured and their magnitude can help someone become better educated on the topic of earthquakes since they could happen at any time. Besides the fact, learning about the causes, foreshocks, mainshocks, and aftershocks are also vital in sensing earthquakes. Not only is it fundamental to know the facts behind earthquakes, it is also crucial to know where they occur, such as in places like Haiti, Japan, and Mexico. Earthquakes are not preventable, but in knowing the workings behind them, people can learn to cope with them to a greater degree.
Earthquakes are best described as a shaking or vibration of the ground caused by breaking of rock. Sometimes they are very strong and other times you would hardly notice them. This shaking occurs when stress that builds up in the crust is suddenly released as the crust breaks free and/or slides against the other pieces of crust. Earthquakes may also be thought of as the breaking of a popsicle stick by applying pressure to both ends at the same time. Should you try this experiment , you will feel the pressure build up as you apply more force until the stick snaps. When the stick snaps you will feel an instant of pain at your fingers as the stress reduces and energy waves move throughout the stick. When the earth's crust is placed under similar types of stress, binding as the stress builds, it will also snap and release the energy into the surrounding rocks, 'ooch'. Thinking about earthquakes will become more clear if you try another experiment.
Earthquakes play a major role into understanding the composition and materials that exist within the Earth (Merali and Skinner, 2009, p.252). Earthquakes are the main source of insight into the inner workings of the earth, due to the nature of the seismic waves they produce. P and S waves are reflected and refracted at different boundaries within the earth, and this enables seismologists to make inferences about the internal composition and structural of planet Earth. (Merali and Skinner, 2009, p.252).
Earthquakes are a natural part of the Earth’s evolution. Scientific evidence leads many geologists to believe that all of the land on Earth was at one point in time connected. Because of plate tectonic movements or earthquakes, continental drift occurred separating the one massive piece of land in to the seven major continents today. Further evidence supports this theory, starting with the Mid-Atlantic ridge, a large mass of plate tectonics, which are increasing the size of the Atlantic Ocean while shrinking the Pacific. Some scientists believe that the major plate moveme...
Before examining the Northridge event, understanding the naturally occurring hazard that is an earthquake will help to better understand exactly what happened and why it was such an important geological event. With four distinct layers, two layers, the crust and upper portion of the mantle, compose the skin that is the surface layer of the Earth. The crust is not a single, continuous piece. It is actually several different pieces, or plates, that come together to form the puzzle that comprises the surface of the Earth. These plates are in constant motion rubbing against one another. These areas, known as fault lines, where the plates rub up against one another have spots where one plate ”gets stuck while the rest of the plate keeps moving. When the plate has moved far enough, the edges unstick and is how most of the earthquakes around the world occur” (Wald, 2012). The energy stored from the friction of the two plate...
There are about 15 tectonic or lithospheric plates on the earth’s surface, which have different size and move relative to one another over the earth’s surface. As a result, the crust around the boundaries of the plates bends or deforms, accumulating strong energy during these processes (Briggs, 2006). When the strain becomes too great to bear by the crust in the future, the crust will snap or slip causing earthquakes. As a type of geophysical hazard, earthquakes are inevitable for mankind living on the Earth, which destroy tremendous buildings, and take human life away. However, influences of earthquakes can be reduced if people take appropriate actions. This report provide an overview of two earthquakes that happened in Haiti and Chile in 2010, and compare and contrast these two earthquakes to see how the consequences of earthquakes can be reduced.
Body The entire San Andreas fault system is more than 800 miles long and extends to depths of at least 10 miles within the Earth. The fault is a complex zone of crushed and broken rock from a few hundred feet to a mile wide. Many smaller faults branch from and join the San Andreas fault zone. The Pacific plate is moving northwest in relation to the North American plate, and it is believed that the total displacement along the fault since its formation more than 30 million years ago has been about 350 mi. Movement along the fault causes earthquakes; several thousand occur annually.
The Tohoku earthquake caused by the movement of the Pacific plate slides underneath the Eurasia plate at the rate of three inches per year, associated with Japan Trench
They are the earth’s crust; they move very slowly every year. As the tectonic plates slide over each other they cause earthquakes. Earthquakes produce various damaging effects this includes damage to structures of buildings, bridges and other standing formations which then...
A geohazard is the term for a geological state which has the potential to create widespread damage. But what exactly is a geohazard, and where do they occur?
Rising of the earth’s crust is responsible for producing earthquakes, Submission of report for publishing.
In the early morning hours on January 17th, 1994 a very violent tremble took place across Los Angeles, California area that left fifty-seven people dead, more than 7,000 injured, more than 20,000 homeless and left over 40,000 buildings damaged. Around 4:30 a.m. a horrific 6.7 magnitude earthquake, that tested building codes and earthquake-resistant construction, shook Los Angeles, San Bernardino, Ventura, and Orange Counties with the most intense damage occurring in Sherman Oaks and Northridge. The earthquake caused several bridges and overpasses to collapse closing sections of the Santa Monica Freeway, Simi Valley Freeway, Golden State Freeway, and the Antelope Valley Freeway. There were also several fire outbreaks throughout the San Fernando Valley, Malibu, and Venice area because of underground gas lines that had been ruptured during the earthquake that caused additional damage.
Earthquakes are vibrations felt at the surface of the earth which are caused by disturbances of the energy in the earth's interior. These vibrations are known as seismic waves. (Skinner Robinson McVerry 1) There are different type sof seisimc waves such as Primary (P) waves, whcih travel the fastest, Secondary (S) waves which cause the earth to vibrate vertically, Surface (L) waves. P and S waves are "affected by changes in the density and the rigidity of the materials through which they pass." (Columbia Encyclopedia) Earthquakes vary in their intensity and duration. Often times they are strong enough to cause massive destriction. Tall buildings often suffer as a result of these natural disasters. In recent years this has become a larger and larger threat with both the number of large buildings, and their number of occupants increasing. In an effort to try to minimize the damage caused by earthquakes many some engineers focus primarily on designing and constructing earthquake resistant buildings. Earthquake engineers have gathered much of their information from analyzing past earthquakes, and learning which buildings can and can't withstand the tremors. The goals of these engineers is to design buildings that can withstand moderate earthquakes and obtain minimal damage, and that the buildings will not collapse lowering the probability of human deaths.
Earthquakes belong to the class of most disastrous natural hazards. They result in unexpected and tremendous earth movements. These movements results from dissemination of an enormous amount of intense energy in form of seismic waves which are detected by use of seismograms. The impact of earthquakes leaves behind several landmarks including: destruction of property, extensive disruption of services like sewer and water lines, loss of life, and causes instability in both economic and social components of the affected nation (Webcache 2).
A break or rupture in the earth's surface. When the fault moves, earthquakes are caused, releasing magma and letting it rise to the surface.
An earthquake is a natural disaster that consists of the shaking of the surface of the Earth, making a quick discharge of energy in the Earth´s lithosphere, which creates seismic waves. Earthquakes manifest themselves by shaking, trembling, and sometimes movement of the ground. They are caused by a slip in the inner earthly faults. They can swing in capacity and in size, from the ones that are so weak that people don’t even feel, to those that can toss people around and can also destroy an entire city with its violent movement. (Earthquakes)Earthquakes by themselves unfrequently kill people. It is usually the secondary events, like buildings collapsing, tsunamis, fires, and volcanoes. Many of this type of things can be avoided by a better construction, early warning, and safety