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.
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 ...
Shifts along the convergence of the North American and Eurasian continental plates are believed to have caused the Tangshan Earthquake. This quake is thought to ...
About -  Privacy -  Careers -  Ask Blog -  Mobile -  Help -  Feedback  -  Sitemap  © 2014 Ask.com