Off the Scale
Seismograffiti
Do the Wave
Cast a Shadow
Shake, rattle & roll
100
Measures earthquakes on a logorithmic scale from 1 to infinity.
What is the Richter Scale
100
The name of the paper record of an earthquake.
What is a seismogram
100
The last type of wave to reach a seismograph station.
What is the L-wave
100
The layer of Earth that causes a shadow zone for an earthquake.
What is the liquid outer core
100
The cliff-like feature formed by an earthquake.
What is a fault scarp
200
Device place in ground, used to detect the amount of ground shaking in an earthquake.
What is a seismometer
200
The Modified Mercalli Scale bases its levels on the amount of this in an area.
What is damage
200
The seismic wave that squeezes and stretches the crust in the direction of travel.
What is the P-wave
200
A magnitude 5 earthquake has this much more energy released than a magnitude 3.
What is 900 times
200
The point on the Earth's surface directly above the earthquake's point of first failure.
What is the epicentre?
300
Roman numerals are used to show various degrees of damage on this scale.
What is the Mercalli Scale
300
These are produced by large earthquakes generated under the ocean.
What is a tsunami?
300
Travelling at over 3 km/sec, these waves have both horizontal and vertical displacement.
What are S-waves
300
The reason P-waves can be felt on the opposite side of the Earth from the earthquake.
What is P-waves can travel through liquid outer core
300
The material that experiences the least amount of ground shaking in an earthquake.
What is solid bedrock
400
Reading the amplitude of this wave on a seismogram will indicate the size of the earthquake.
What is the S-wave
400
The wave that has the greatest vertical displacement (up and down) along the surface.
What is the L-wave
400
Typically, the wave which causes the greatest destruction in loose, or unstable, ground.
What are L-waves
400
The reason L-waves do not get affected by the Earth's inner layers.
What is L-waves are surface waves
400
Along with plate movement, meteor impact and collapse of caverns, the other cause of earthquakes on Earth.
What are volcanoes
500
What must you determine from this seismogram to determine the distance to the epicentre?
What is the P - S travel time difference
500
The name for this type of fold.
What is a syncline
500
The wave also referred to as: transverse.
What is the S-wave
500
The material that P-waves cannot travel through.
What is nothing
500
The reason an underwater earthquake on a strike-slip fault will not likely cause a tsunami.
What is there is no vertical motion