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Quakes1
Quakes2
Quakes3
Quakes4
Quakes5
100
The scale which measures the magnitude of an earthquake.
What is a Richter Scale
100
These waves are the fastest waves
What are p-waves
100
This is a sudden, strong movement of earth's crust
What is an earthquake
100
This is a large wave caused by an earthquake in the ocean.
What is a tsunami
100
In which direction do seismic waves travel?
What is outward, in all directions
200
These waves are the second waves to reach the seismograph
What are s-waves
200
This is the point on the earth's surface where the most shaking occurs.
What is the epicenter
200
These waves are the slowest seismic waves
What are L-waves
200
How many seismographs (at a minimum) do you need to find the epicener of an earthquake?
3
200
This type of wave causes the most damage
What is L-waves
300
Another word meaning "strength" that is commonly used to describe earthquakes.
What is magnitude
300
Another name for earthquake waves
What is seismic waves
300
This instument detects and measures earthquakes
What is a seismograph
300
This is the printout that comes out of the seismograph
What is the seismogram
300
This wave moves particles at right angles to the direction of the wave.
What is s-waves
400
This is where earthquakes start
What is the focus
400
The time it takes from the beginning of the p-waves to the beginning of the s-waves.
What is S-P Interval
400
This wave moves its particles up and back or push/pull.
What are p-waves
400
This zone of earthquakes circles the Pacific Ocean.
What is the Ring of Fire
400
Earthquakes above this number on the Richter scale are likely to cause major damage.
What is 7.0
500
This zone has earthquakes and volcanoes under the Atlantic Ocean
What is the Mid-Atlantic Ridge
500
The earthquakes in this zone result from large earth plates colliding into each other.
What is Euroasian-Menanesian Belt
500
If the first p-waves arrive at a seismograph at 7:00am and the first s-waves arrive at the same seismograph at 7:03, what is the S-P interval?
What is 3 minutes
500
If the S-P interval is 4 minutes long, how far away is the epicenter from the seismograph?
What is 2,500 km
500
Earthquakes below this number are not likely to be be noticed.
What is 2.5