What Causes a Earthquake?

Answer

An earthquake is described as a sudden movement or tremor of the crust of the earth which originates from under or on top of the surface. The two major causes of earthquakes are explosive volcanic eruptions and tectonic activities related to plate faults and margins.
Q&A Related to "What Causes a Earthquake"
There are areas of the earth underground that are called tectonic plates and faults. These are pieces of the earth that are not solid or stable. When they move, they rub against each
http://www.ask.com/web-answers/Science/Nature/how_...
The first triggering effect of vibrations in an a margin or fault-type earthquake starts with the sudden release of energy when two tectonic plates snap apart. If the earthquake happens
http://www.ehow.com/info_8469110_causes-vibrations...
the underground plates shifting an causing the ground to shake witch people cause an earthquake.
http://wiki.answers.com/Q/What_is_the_direct_cause...
What causes earth quakes is the plates under earth move or collide with each other and shake the earth. same thing with tsunamis, just that on the ocean floor.
http://wiki.answers.com/Q/An+earthquake+causes+a+t...
2 Additional Answers
Ask.com Answer for: what causes a earthquake
Earthquakes are caused by an abrupt shift of rock along a fracture in the Earth.
Most earthquakes are caused by slow movements inside the Earth that push against the Earth's brittle, relatively thin outer layer, causing the rocks to break suddenly.
The movement of two of the Earth's plates, or layers, is what causes an earthquake. The two plates move and either run into each other or slide past each other. You can find more information here: http://earthquake.usgs.gov/learn/kids/eqscience.php
Explore this Topic
Damage caused by earthquakes depends on what area is hit. If an unpopulated region is struck, there will be low loss of life or property, while if it hits a large ...
Earthquakes are caused by shifts of the plates in the earth's crust. The shifts happen along fault lines, which are breaks in the crust. An earthquake ...
The Indonesian Earthquake was caused by subduction. It originated from the Indian Ocean and triggered a series of devastating tsunamis along the coast, with Indonesia ...
About -  Privacy -  Careers -  Ask Blog -  Mobile -  Help -  Feedback  -  Sitemap  © 2014 Ask.com