Ch 11 Earthquakes/Seismology
Earthquakes
Rocks will bend and __________ up to a limit undergoing __________ deformation.
A __________is created when the rock finally breaks.
An earthquake is the __________ produced by the __________ of the rock.
Types of Faults
__________ Faults
__________ forces pull the rock apart.
Rock above the fault surface moves __________ compared to the rock below the fault surface.
__________ Fault
Compression forces __________ the rock.
Rock above the fault surface moves __________ and over the rock below the fault surface.
____________________Fault
__________ forces tear the rock.
Rocks on either side of the fault are moving past each other without __________or
__________ movement.
__________ Waves
Waves __________ by earthquakes that travel through the __________.
__________of Seismic Waves
__________- the point where the __________is first released.
Below the surface along the __________.
__________- point on the surface of the Earth directly above the __________
Types of Seismic Waves
__________ Waves (P-Waves)
Particles in the __________ move back and forth in the __________ direction the wave is
traveling.
__________ seismic waves
__________ Waves (S-Waves)
__________ in the rock move up and down at __________ angles to the direction of wave
travel.
__________Waves (L-Waves)
Particles in the rock move in a __________, rolling motion and a side-to-side,
__________motion.
Causes the most __________.
Originate from the __________.
Locating an __________
__________ : Register the waves & record the __________ that each arrived.
Data from three separate __________ are required to locate the epicenter of an earthquake.
The epicenter distance is figured out using the time difference between the __________waves graph.
__________
The amount of __________released in an earthquake.
__________Scale- a numeric scale used to describe the __________ (magnitude) of an
earthquake.
__________Scale- scale that describes the amount of __________.
__________
Wet __________ can be strong most of the time, but the __________ from an earthquake
can cause it to act like a liquid.
This causes soil to __________into the ground and cause things to collapse.
__________
Under water earthquakes cause the water to shake forming large __________.
__________ sea __________
Wave crests can reach 30m in __________ by the time it reaches __________