Continental Drift & Plate Tectonics Causes of Earthquakes Measuring Earthquakes Seismic Activity Whose fault is it?
100
Alfred Wegener?
Who is the scientist that stated continents were once together but after millions of years separated
100
The location where two plates meet
What is a boundary?
100
The instrument used for measuring earthquakes
What is a seismograph?
100
The fastest of all seismic waves
What is a P-wave (primary)?
100
The fault along the Pacific Coast
What is the San Andreas Fault?
200
The super-continent that once existed
What is Pangea?
200
The TWO locations where an earthquake may occur
What is a boundary or a fault?
200
The record of seismic activity
What is a seismogram?
200
The second seismic wave that is found on a seismogram.
What is a S-wave (secondary)?
200
The fault in the Midwest United States
What is the New Madrid Fault?
300
The idea that the plates underneath Earth's surface move.
What is the theory of plate tectonics?
300
If two plates moves together it is called this
What is a convergent boundary?
300
This scale is used to measure the magnitude of an earthquake.
What is the Richter Scale?
300
The slowest of all seismic waves
What is a surface wave?
300
The fault on the East Coast
What is The Ramapao Fault?
400
This scientist stated that it is not the continents that move but the plates
Who is Henry Hess?
400
If two plates move apart it is called this
What is a divergent boundary?
400
This scale is used to measure the intensity of an earthquake.
What is the Mercalli Scale?
400
The seismic activity that occurs under water
What is a tsunami?
400
This is where earthquakes begin, it is underneath the Earth
What is the focus?
500
One piece of evidence that continental drift occurred
What is fossils of animals OR fossils of plants or rock formations?
500
If two plates that slide past one another it is called this
What is a transform boundary?
500
It is important to locate this, the place on Earth where seismic activity begins.
What is the epicenter?
500
The frequency of seismic activity in the world
What is everyday?
500
This is the type of fault where the crust is extended
What is a normal fault?






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