The middle of the ocean
Plate boundaries
The middle of a plate
Everywhere
Shear
Compression
Tension
Strike
The amount of damage done by
The number of people who felt
The number of occurrences of
The magnitude of
People's observations
Seismographs
GPS
Tremor finders
The strength of
The area covered by
The magnitude of
The amount of damage done by
People's observations
Seismographs
Seismograms
GPS
One
Two
Three
Four
S Waves
P Waves
Surface Waves
They all travel the same speed
S Waves
P Waves
Surface Waves
Sub Surface Waves
How strong the earthquake was
The direction of the earthquake's focus
The magnitude of the earthquake
The distance the epicenter is from the seismograph
Wait!
Here's an interesting quiz for you.