[DOC] [TLE] Earthquakes & Earth's Interior - Tulane University [PAR] Sep 24, 2015 ... When a rock is subjected to increasing stress it changes its shape, size ... Most 
natural earthquakes are caused by sudden slippage along a fault. ... Such faults 
result from shear stresses acting in the crust. ... This is the exact location within 
the earth were seismic waves are generated by sudden release of... [DOC] [TLE] Fault - The shape of the land, Forces and changes, Spotlight on ... [PAR] Movement of crustal blocks along faults may be regular and slow or sporadic and 
sudden. ... When that stress becomes greater than the forces holding the blocks 
... A fault is defined as a crack or fracture in Earth's crust along which rock on one 
... The area where crustal blocks meet and move along a fault from the fault line... [DOC] [TLE] Earthquakes and faults - Putting Down Roots in Earthquake Country [PAR] Stresses in the earth's outer layer push the sides of the fault together. ... 
Eventually enough stress builds up and the rocks slip suddenly, releasing energy 
in ... A fault is a thin zone of crushed rock separating blocks of the earth's crust. ... 
Surface features that have been broken and offset by the movement of faults are 
used to... [DOC] [TLE] Earthquake Facts & Earthquake Fantasy [PAR] Stress builds up and the rocks slip suddenly, releasing energy in waves that 
travel ... Parts of the San Andreas Fault system adapt to this movement by 
constant ... A magnitude 12 earthquake would require a fault larger than the earth 
itself. ... of the crust, except in northern California along the Cascadia Subduction 
Zone,... [DOC] [TLE] Earthquakes - General Interest Publication [PAR] Jan 11, 2013 ... At other times, the plates are locked together, unable to release the accumulating 
energy. .... A fault is a fracture in the Earth's crust along which two blocks of the ... 
Strike-slip (lateral) faults occur in response to either type of stress; ... described by 
the geographic position of its epicenter and by its focal depth. [DOC] [TLE] What Is A Fault Line, And Where Are They Found? - WorldAtlas.com [PAR] Sep 19, 2016 ... A fault line is a geological fracture where the movement of masses of ... the 
energy is released in the form of a sudden movement of these rocks, which is 
usually concentrated along a specific plane on the Earth's crust, namely the faults
. ... must yield, often releasing stress in the form of steady movements,... [DOC] [TLE] How does an earthquake occur? | Reference.com [PAR] Earthquakes occur due to the movement of tectonic plates in the Earth's crust. ... 
The release of that energy is an earthquake. ... The stress builds until it releases 
along the plate's weakest point--a fault. ... A: Like most earthquakes, the 1556 
Shaanxi earthquake occurred due to the sudden shifting of tectonic plates 
against... [DOC] [TLE] Chapter 3: Earthquakes - Open Geography Education [PAR] Tectonic plates are also composed of two types of crust, oceanic and continental. 
... in contact, stress will build as the force of their movement causes a push on 
each other. ... the rocks to hold, segments may suddenly snap, releasing large 
amounts of energy. ... Think of a minor walking down into the earth along a fault 
line. [DOC] [TLE] earthquake facts, information, pictures | Encyclopedia.com articles ... [PAR] Some earthquakes occur when tectonic plates, large sections of Earth's crust and 
... In all three of these settings, earthquakes result from movement along faults. ... 
to overcome the friction holding the boulder in place, its potential energy will .... In 
the sudden rearrangement of fault blocks in the earth's crust that cause an... [DOC] [TLE] J! Archive - Show #3489, aired 1999-11-04 [PAR] Now owned by Ford, this Swedish company is loosening up with its C70 .... It's 
the sudden movement of the Earth's crust to release stress along fault lines ... 
Imaginary geographic lines around the Earth include the equator & these 2 "
tropics"... [DOC] [TLE] Ring of Fire - National Geographic

Question: It's the sudden movement of the Earth's crust to release stress along fault lines
Answer: Earthquake