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Earthquakes

Across
A large area of flat land elevated high above sea level
An earthquake occurs after a larger earthquake in the same area
A fold in the rock that bends upward
This fault has blocks move in opposite directions
An instrument that records seismic waves
A rating system based on total energy released from the earthquake
A fold in the rock that bends dowward to forma valley
The rock that lies below is called a ___.
Earthquakes that turns loose, soft soil, into liquid mud
A number assigned to an Earthquake, based on size.
The fault is at an angle, on block of rock lies above the fault
A force hat acts on rock to change its shape or volume
Stess that squeezes rocks until it folds or breaks
The water from the earthquake forms on huge wave
Down
The point on earths surface directly above the focus of an earthquake
Is the force that opposes the motion of one surface as it moves across another surface.
A scale developed to rate earthquakes based on damage
Is a rating of an earthquakes's magnitude based on the seismic waves
The block of rock that lies above
Rocks on either side of the fault slip past each other
The first waves to arrive
Move slower than P and S waves, goes up and down, side to side
The secondary waves arrive
Stress that stretches rock so that it becomes thinner in the middle
Stress that pushes masses of rock in opposite directions
The point beneath Earth's surface where rock breaks under stress and causes an earthquake