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.
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 ...
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.
www.ask.com/youtube?q=What Is an 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 ...
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 ...
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
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 are unpredictable and can strike with enough force to bring
buildings down. Find out what causes earthquakes, why they're so deadly, and
Apr 29, 2016 ... This diagram shows an earthquake along a fault. The focus of the earthquake is
where the energy is released underground. The epicenter is ...
The spot on the surface of the Earth directly above where the earthquake occurs
underground is called the epicenter of the earthquake. After an earthquake ...