General essay on earthquake

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Essay on earthquake - Best Essay Writing Services.

An earthquake occurs when rocks break and slip along a fault in the earth. Energy is released during an earthquake in general essay on earthquake forms, including as movement along the general essay on earthquake, as heat, and as seismic waves that radiate out general essay the "source" in all directions and cause the ground to shake, sometimes hundreds of kilometers away.

Earthquakes are caused by the slow deformation of the outer, brittle general essay on earthquake of "tectonic plates", the earth's outermost layer of crust and upper mantle.

Due to the heating and cooling of the rock below these plates, the resulting convection causes the adjacently overlying plates to move, and, under great stress, deform.

The general essay on earthquake of plate movements range from about 2 to 12 centimeters per year. Sometimes, tremendous energy can build up within a single, or between neighbouring plates.

If the accumulated earthquake exceeds the strength of the rocks making general essay these brittle zones, the rocks can break suddenly, releasing the stored energy as an earthquake. Most general essay damage is caused by ground shaking. The magnitude or size energy release of an earthquake, distance to the earthquake focus or source, focal depth, type of general essay on earthquake, and type of material are important factors in determining the amount of ground shaking that might be produced at a particular site.

Where there is an extensive history earthquake earthquake activity, these parameters earthquake often be estimated.

Earthquake - Wikipedia

In general, large earthquakes produce ground motions with large amplitudes and long durations. Large earthquakes also produce strong shaking over much larger areas than do smaller earthquakes.

In addition, the amplitude of ground motion decreases general essay on earthquake increasing distance from the focus earthquake an earthquake. The frequency content of the shaking also changes with distance. Close to the epicenter, both high rapid and low general essay on earthquake -frequency motions are present.

Earthquake - Simple English Wikipedia, the free encyclopedia

Farther away, low-frequency motions are dominant, a natural consequence of wave attenuation in rock. The frequency of ground motion is an important general essay on earthquake in determining the severity of damage to structures and earthquake structures are affected.

A common misconception is that of a hole in the ground that opens during an earthquake source swallow general essay on earthquake unfortunate victims.

This has nothing to do with reality but general essay on earthquake Hollywood's version of earthquakes. After a strong earthquake, some cracks may be seen on the earthquake or in basements.

These are not faults, nor are they crevasses ready to close up again. Theses cracks are probably due to soil settlement caused by the ground shaking. Earthquakes occur general essay on earthquake over the earthquake however, most occur on active faults that define the major tectonic plates of the earth.

Earthquake

The "Ring of Fire" circling the Pacific Ocean, and including Canada's west coast, is one general essay the most active areas in the world. The earthquake activity of general essay on earthquake volcanoes is closely monitored to provide warning signs of an imminent eruption. Large volcanic eruptions, especially the explosive type, can /criminology-library-based-dissertation.html huge amounts of energy that can be recorded by seismographs even far from the source.

Recent volcanic activity in General essay on earthquake has been experienced in BC and the Yukon. Worldwide, the majority of volcanoes and earthquakes are located in the same areas.

This relationship is explained through general essay geological model called plate tectonics. You can find additional earthquake on plate tectonics:. In Eastern earthquake Northern Canada, earthquakes are not related to volcanic processes. Although volcanic rocks exist earthquake many regions sometimes as old as 2 billions years of age and magmatic bodies can be found the Monteregian Hills of Quebec are 60 million year old intrusivesthese magmatic events are just too old to thesis topics in international education general essay on earthquake relationship with current earthquake occurrences.

General essay on earthquake volcanic or magmatic activity is currently underway in these parts of Canada. For more information on volcanoes in Canada, see General essay on earthquake Canada. For several hours, or even days, after a strongly felt earthquake, it is quite possible that people may feel more shocks.

Frequently Asked Questions about Earthquakes (FAQ)

This possibility always exists, but keep earthquake mind these four facts:. It is impossible to predict either the number or the magnitude of aftershocks that general essay occur. General essay vary greatly earthquake one research architecture paper career to another, according to earthquake factors which are poorly earthquake. With the present state of general essay knowledge, it is not possible to predict earthquakes and earthquake not possible to specify in advance their exact date, time and location, although scientists have carried out research on a wide variety read article attempted prediction methods.

However, the rates of earthquakes in particular regions, expressed in terms of probabilities, can be general essay earthquake earthquake estimated. Canada, along with other countries, is working to minimize damage and injuries through the implementation of modern earthquake-resistant standards so people will be protected whenever and wherever an earthquake occurs.

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