The damage earthquakes cause, and earthquake saftey.
100
a fault
a what is a break in a body of rock along which one block slides relative to another
100
first blank focus, second blank rock.
seismic waves tracel from a what through surrounding what?
100
magnitude
What is the strength of, or amount of energy released by, an earthquake?
100
reliable
There is currentlu no what way to predict exactly when or where an earthquake will occur.
100
giant ocean wave
a tsunami is a what wave that forms after a volcanic eruption submarine earthquake, or landslide
200
first blank locked, second blank friction.
when a fault is what, the rocks along a fault are under stress but what prevents them from moving.
200
first blank seismic, second blank body.
body waves are what waves that travel through the what part of the earth?
200
magnitude
magnitude is expresses by a number on a what scale?
200
first blank few, second blank gaps
Scientists can identify areas along faults where how many earthquakes have occured recently but strong ones have occured before, calles seismic what?
200
ground
Movement of the what during an earthquake rarely causes direct injuries or deaths.
300
grind
Eventually the stress becames so great that the rocks breack and suddenly what past each other.
300
parallel
One type of body wave is a P wave (o for primary), which causes rock to move back-and-forth what to the wave?
300
ground
The richer the scale measures the what motion from an earthquake to determine magnitude.
300
foreshocks
what or, little earthquakes, might precede an earthqake and give cluse to evacuate.
300
first one falling, second one flying. doesnt matter if you change order
Most earthquakes injuries result from callapse of buildings, what objects, or what objecs
400
elastic rebound
This sudden return of elastically deformed rock to its undeformed shape is called what?
400
fastest
P waves are the what seismic waves and can travel through solid, liquid, and gas?
400
moment magnitude scale
the what scale measures earthquake strength based on the size of the arean of the fault that moves the average distance the fault blocks move, and the rigidity of the rocks in the fault.
400
tilting
Scientists can analyze slights that is what of the ground or magnetic and electrical properties of cracks that fill with water
400
first blank loose, second blank solid.
A building built on what soil or rock is much more likely to topple during an earthquake than one built on more what ground.
500
first blank energy, second blank earthquake.
The movement or trembling of the ground caused by the release of what when rocks experience elastic rebound is a what?
500
solids
S waves are the second fastes waves and can only travel through what?
500
mercalli scale
What scale expresses the intensity, or amount of damage caused by, an earthquake
500
secondary
after an earthquake, watch out for what hazards like live eletrical wires and fires.
500
emergency kit
Before any disaster, be prepared by keeping a what kit and discussing plans with your family