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An earthquake is the shaking of the ground caused by an abrupt shift of rock along a fracture in the Earth, called a fault.



An earthquake (also known as a quake, tremor or temblor) is the perceptible shaking of the surface of the Earth, which can be violent enough to destroy major  ...

The Science of Earthquakes - Earthquake Hazards Program - USGS


Jul 18, 2012 ... 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? - 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 ...

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?


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? | 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 ...

What is an Earthquake? - YouTube


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 ...

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 ...

Earthquakes 101 - National Geographic


Soon walls shift and everything begins to collapse – telltale signs of what could be a devastating earthquake. We've seen the destruction they unleash. Some of ...

Popular Q&A
Q: What is an earthquake?
A: The Earth's crust, or lithosphere (hard outer surface) is made up of "tectonic plates" or large plates. There are about 7 major plates and many smaller plates, ... Read More »
Source: wiki.answers.com
Q: What is a earthquake?
A: Earthquake:1:shaking and vibration at the surface of the earth resulting from underground Read More »
Source: www.chacha.com
Q: What is an earthquake?
A: The earth is composes of tectonic plates. They're always moving, but since they aren't flat/smooth they sometimes get stuck on eachother. When they do force bui... Read More »
Source: answers.yahoo.com
Q: What is a earthquake?
A: the energy released when rock along either side of a fault line moves. they can also be caused by magma moving underground. Source(s) Read More »
Source: answers.yahoo.com
Q: What is an earthquake?
A: Earthquakes are the shaking, rolling or sudden shock of the earth's surface; the Earth's Read More »
Source: www.chacha.com