Location of Earthquakes
Causes of Earthquakes
Faults at Tectonic Plate Boundaries
Earthquake waves
Earthquake measurement
100
Seismographs
Earthquake sensing instruments that record seismic waves and are located at or near the surface of the earth
100
Elastic Deformation
What is one deformation that occurs that causes earthquakes?
100
a specific type of plate motion
What type of plate motion takes place at different tectonic plate boundaries is?
100
P waves
What is the fastest moving seismic wave that always travel ahead of other seismic waves?
100
Using Seismographs and seismogram
Earthquakes are measured by?
200
Seismologist Charles Richter
Who was the inventor of the "Richter Magnitude Scale?"
200
Plastic manner and elastic manner
What are the two ways rock along a fault deforms?
200
Earthquake zone
The San Andreas Fault is what kind of zone?
200
Pressure waves and shear waves
What does P waves and S waves stand for?
200
people who study earthquakes
What is a seismologist?
300
the simplest method by which seismologist find the earth's epicenter
What is the S-p time-method?
300
Transform, Convergent, Divergent
What are the 3 plate motions that take place at different tectonic plate boundaries?
300
Divergent motion
What type of motion occurs when two plates pull away from each other?
300
Primary Waves
P waves are also called?
300
find out an earthquake’s strength.
seismograms can be used not only to determine an earthquake’s epicenter and its start time but also to
400
1930s
In what year did Seismologist Charles Richter invent the "Richter Magnitude Scale?"
400
Earthquake zones along tectonic plate boundaries
Most earthquakes happen where?
400
along tectonic plate boundaries
Where are earthquake zones located?
400
Up and down, around, back and forth
Surface waves move in what directions?
400
magnitude
A measure of the strength of an earthquake is called
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