Vocabulary
Waves
Plates
Dangers
Rating Scales
100
The point on the surface directly above the focus.
What is the epicenter?
100
The first waves to arrive at seismograph stations are this type of wave.
What is a P-Wave
100
Breaks in Earth's crust where rocks slip past each other along plate boundaries.
What is a fault?
100
A giant sea wave that is caused by an underwater earthquake.
What is a tsunami?
100
This instrument is used to record the ground movements caused by seismic waves as they move through earth.
What is a seismograph?
200
The point beneath Earth's surface where rock that is under stress breaks.
What is the focus or hypocenter?
200
This type of wave sways side to side.
What is an S-Wave?
200
Earthquakes are common at this type of boundary that has two plates slip past each other in opposite directions.
What is a transform boundary?
200
Liquefaction may cause this type of hazard during an earthquake.
What is a landslide?
200
This a rating scale that looks only at the seismic waves produced by an earthquake.
What is the Richter Scale?
300
When an earthquake's violent movement suddenly turns loose soil into liquid mud.
What is a liquefaction?
300
This type of wave is the second type of wave to reach seismograph stations.
What is S-Wave?
300
Deep focus earthquakes are more common at this type of plate boundary.
What is Convergent Oceanic-Continental and Convergent Oceanic-Oceanic?
300
This type of ground is the best place to build a home in an earthquake prone area.
What is rock or solid ground?
300
True or False: An earthquake that causes a lot of damage to buildings and structures would have a low intensity rating.
What is False?
400
An earthquake that occurs after a larger earthquake in the same area.
What is an aftershock?
400
This type of wave pushes particles closer together and then stretches them apart.
What is a P Wave?
400
This occurs at deep-ocean trenches where one plate sinks beneath another plate back into the mantle.
What is subduction?
400
Three dangers that occur in earthquake zones.
Answers Vary
400
This rating scale estimates that amount of total energy released by an earthquake.
What is the Moment Magnitude Scale?
500
A measure of an earthquake's strength based on seismic waves and movement along faults.
What is magnitude?
500
This type of earthquake wave produces the most severe ground movement.
What is a surface wave?
500
A plate boundary where two continental plates meet.
What is convergent continental-continental?
500
Three things that can be done to prevent damage during an earthquake.
Answers vary.
500
This is a rating scale that rates earthquakes based on the damage done and effect on people, structures, and natural environment.
What is the Modified Mercalli Intensity Scale?
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