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Earthquake - Wikipedia

en.wikipedia.org/wiki/Earthquake

An earthquake is the perceptible shaking of the surface of the Earth, resulting from the sudden ... Earthquakes are caused mostly by rupture of geological faults, but also by other events such as vo...

What is an earthquake and what causes them to happen?

www2.usgs.gov/faq/categories/9827/3343

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 ...

Why Do Earthquakes Happen?

www.geo.mtu.edu/UPSeis/why.html

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

www.soest.hawaii.edu/GG/ASK/earthquakes.html

Reply to ASK-AN-EARTH-SCIENTIST. Subject: What causes earthquakes? What causes earthquakes? The short answer is that earthquakes are caused by ...

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

study.com/academy/lesson/the-causes-of-earthquakes.html

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...

Earthquakes & Tsunamis: Causes & Information - Live Science

www.livescience.com/21486-earthquakes-causes.html

Apr 20, 2015 ... Earthquakes occur every day, but most people don't notice the small ones. Here's what causes earthquakes.

www.ask.com/youtube?q=What Is Causing 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...

What Causes an Earthquake? Faults Explained

news.nationalgeographic.com/news/2014/01/140115-earthquakes-california-faults-science/

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

What causes earthquakes?

www.empr.gov.bc.ca/Mining/Geoscience/SurficialGeology/Earthquakes/Pages/causes.aspx

The shaking motion of an earthquake is the result of a sudden release of energy. Earthquakes are caused when stress, building up within rocks of the earth's ...

Italy earthquake: What caused the earthquake in Italy? Which ...

www.express.co.uk/news/world/703356/italy-earthquake-why-what-caused-which-country-next-britain

Nov 3, 2016 ... CENTRAL Italy was rocked by a magnitude 5.0 earthquake last night, just days after a 6.6 tremor caused major damage to several historical ...

Answer
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.
More Info

The Science of Earthquakes - USGS Earthquake Hazards Program

earthquake.usgs.gov

Apr 7, 2016 ... An earthquake is what happens when two blocks of the earth suddenly slip past one ... What causes earthquakes and where do they happen?

What is an Earthquake? - Geoscience Australia

www.ga.gov.au

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 causes earthquakes? - Explain that Stuff

www.explainthatstuff.com

Sep 13, 2016 ... An easy-to-understand explanation of what causes earthquakes, how they move through Earth, and how we can protect buildings and people ...