Show:
Seimology
Parts of an Earthquake
Earthquake Waves
Strength and Location
Earthquake Damage and Hazards
100
Number of earthquakes that occur each year
several million
100
Point inside the Earth where an earthquake begins
focus
100
What are the waves that travel through the inside of the Earth?
Body Waves
100
Another name for the strength of an earthquake 
magnitude
100
Can earthquakes be predicted?
NO
200
Device used by seismologists (earthquake scientists) to determine when/where an earthquake started?
Seismometer
200
Point on Earth's surface directly above an earthquakes starting point
Epicenter
200
The BODY wave that: -moves the fastest -move with a push-pull motion.
P Waves
200
Why do scientists use the Moment Magnitude scale instead of the Richter scale?
Because the Richter scale uses only seismogram information and does not account for observations 
200
A large ocean wave generated by vertical motion of the sea floor during an earthquake
Tsunami
300
Old scale used by scientists to measure earthquake energy 
Richter Scale
300
Any fracture/break along which the ground moves
Fault
300
The second fastest BODY wave that moves perpendicular and through only solids
S Waves
300
Method used by scientists at earthquake stations to pinpoint the location of the epicenter.
triangulation
300
How many earthquake detection stations are needed to locate the epicenter
3
400
Human causes of earthquakes ... (list as many as you can think of)
mining bombs noise stadium vibration fracking

construction

400
Where do most earthquakes occur?
along plate boundaries (worst at convergent)
400
The waves that cause the most damage to houses, buildings etc.
Surface waves
400
Once a seismometer detects p, s and surface waves, the vibrations are written on a piece of paper which is called...
a seismogram
400
What has to happen for an earthquake to occur ......
sudden release of energy
500
Natural Cause of earthquakes ....
movement of plates or subduction of plates
500
Current scale scientists use to measure earthquake strength and damage
Moment Magnitude Scale 
500
When earthquake waves hit different materials within the earth like solid rock, magma etc., this can change their.... (2 answers)
Speed and Direction
500
What three observations are used in the Moment Magnitude scale?
Size of fault

Amount of movement at fault

Type of rock

500
How many possible epicenter locations would there be with information from only 2 earthquake detection stations
2