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An earthquake is the perceptible shaking of the surface of the Earth, resulting from the sudden release of energy in the Earth's crust that creates seismic waves.

The Science of Earthquakes - Earthquake - Earthquake Hazards ...


Apr 7, 2016 ... An earthquake is what happens when two blocks of the earth suddenly slip past one another. The surface where they slip is called the fault or ...

What is an earthquake and what causes them to happen?


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 ...

What is an earthquake?


An earthquake is a shaking of the ground caused by the sudden breaking and movement of large sections (tectonic plates) of the earth's rocky outermost crust.

What is an Earthquake? - Geoscience Australia


These are put into a formula which converts them to a magnitude, which is a measure of the energy released by the earthquake. For every unit increase in ...

What is an Earthquake - eSchooltoday


earthquake and kids. Introduction to Earthquakes & Tsunamis Turn on the TV or read the newspapers and almost always there is something devastating ...

What is an Earthquake? | Earthquakes | Discovering Geology ...


Earthquake Waves Spread Out. Movements within the Earth's crust cause stress to build up at points of weakness, and rocks to deform. Stored energy builds up ...

Earthquakes - Weather Wiz Kids weather information for kids


What is an earthquake? Earthquakes are the shaking, rolling or sudden shock of the earth's surface. They are the Earth's natural means of releasing stress.

Why Do Earthquakes Happen?


When the rocks break, the earthquake occurs. During the earthquake and afterward, the plates or blocks of rock start moving, and they continue to move until ...

www.ask.com/youtube?q=What Is a Earthquake?&v=hkvkcN9rVHs
Feb 28, 2013 ... Hi, I'm Emerald Robinson, and in this "What is" video, we're going to examine earthquakes. An earthquake is an event in which the earth ...
An earthquake is the shaking of the ground caused by an abrupt shift of rock along a fracture in the Earth, called a fault.