General Earthquake Info
A ____ is a break in Earth's crust along which blocks of rock slide relative to one another.
Fault
The amount of damage caused by an earthquake is called
Intensity
A mid-ocean ridge is a good example of what kind of boundary?
Divergent Boundary
The further an area is from the ______, the less damage the earthquake will cause
Epicenter
Up to how many kilometers an hour can tsunamis travel?
800 kilometers per hour
Earthquakes generally happen near
The boundaries of tectonic plates
In the past, scientists used the Richter Scale to measure earthquake strength. Now they use the...
Moment Magnitude Scale
Tectonic Plate boundaries that pull away from one another
Divergent Boundaries
The more frequently earthquakes happen in an area, the higher the _____________ is
Earthquake hazard
What are the first waves of an earthquake called?
P waves or primary waves
Places where large numbers of interconnected faults are located are called what?
Fault Zones
Drawing circles around three seismometer stations who all intersect at the epicenter is a process called
Triangulation
Tectonic plate boundaries that move past each other horizontally
Transform Boundaries
What type of building material is most easily damaged by earthquakes? (two answers)
Brick and Concrete
These types of seismic waves cannot travel through the completely liquid parts of the Earth
S waves or secondary waves
How does energy travel through rocks?
As seismic waves
This scale measures earthquake intensity and goes from 1 to 12.
Tectonic plate boundaries that collide with one another
Convergent Boundaries
Making older buildings stronger so that they are more earthquake-proof is called...
Retrofitting
Earthquakes cause tsunamis. What are two of the three other causes of tsunamis?
Volcanic Eruptions, landslides or meteorite impact
Folded rocks are a result of
Plastic deformation
A tracing of earthquake motion is called a
Seismogram
The process of one plate moving under another is called
Subduction
______ can cause the ground to settle and can intensify ground shaking.
Liquefaction
What type of seismic waves cause the most damage?
Surface Waves