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
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.
Jul 24, 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 ...
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 ...
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 ...
Earthquake words and meanings. How does an earthquake occur. Types of
earthquakes for kids. How deos a tsunami form. How to prepare for an eartquake
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 ...
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? Earthquakes are the shaking, rolling or sudden shock of
the earth's surface. They are the Earth's natural means of releasing stress.