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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.



Earthquakes are caused mostly by rupture of geological faults, but also by other events such as volcanic activity, landslides, mine blasts, and nuclear tests.

What causes Earthquakes? - Geoscience Australia


Earthquakes are the vibrations caused by rocks breaking under stress. The underground surface along which the rock breaks and moves is called a fault plane.

What is an earthquake and what causes them to happen? - USGS


An earthquake is caused by a sudden slip on a fault. The tectonic plates are always slowly moving, but they get stuck at their edges due to friction. When the ...

The Science of Earthquakes


Jul 18, 2012 ... An earthquake is what happens when two blocks of the earth suddenly slip past one ... What causes earthquakes and where do they happen?

What Causes an Earthquake? Faults Explained


Jan 15, 2014 ... What was that you felt? Faults deep underground produce different kinds of earthquakes.

Why Do Earthquakes Happen?


Earthquakes are usually caused when rock underground suddenly breaks along a fault. This sudden release of energy causes the seismic waves that make the ...

The Causes of Earthquakes - SOEST - University of Hawaii


What causes earthquakes? The short answer is that earthquakes are caused by faulting, a sudden lateral or vertical movement of rock along a rupture (break) ...

The Causes of Earthquakes - Video & Lesson Transcript | Study.com


In this video lesson you will learn what causes earthquakes and where they occur. You will also understand the theory of elastic rebound, and how...

www.ask.com/youtube?q=What Causes Earthquakes?&v=SB-FmX6_2lM
Mar 12, 2014 ... An earthquake is the shaking of the ground caused by an abrupt shift of rock along a fracture in the Earth, called a fault. Within s...
Popular Q&A
Q: What causes earthquakes?
A: 3 natural (1 human-made) reasons: Plate Tectonics. : The tectonic plates slide one on top of the other, or one aside the other. These are the most usual an powe... Read More »
Source: www.quora.com
Q: What causes earthquakes?
A: When the plates that make up the crust of the Earth's surface move and scrape together, this Read More »
Source: www.chacha.com
A: An earthquake is the result of a sudden release of stored energy in the Earth's crust triggered by shifting tectonic plates. The Earth's lithosphere is an elabo... Read More »
Source: www.sciencedaily.com
Q: What causes earthquakes?
A: L ONG time ago, a large collection of material masses coalesced to form the earth. Large amount of heat was generated by this fusion, and slowly as the earth co... Read More »
Source: www.tribuneindia.com
Q: What causes earthquakes?
A: Slipping of earths tectonic plates, in the crust of the earth. Some plates simply push against each other forming mountain ranges, some slip and grind against e... Read More »
Source: answers.yahoo.com