Earthquakes
Volcanoes
Seismic Waves
Misc
Mountains
100
An a strong, sudden movement of the Earth's crust.
What is an earthquake?
100
Mountains formed by magma that escaped from Earth's interior, then cooled.
What is a volcano?
100
Vibrations created by energy released from an earthquake.
What are seismic waves?
100
What is the name of the instrument used to measure earthquakes?
Seismograph
100
Forms where continental plates collide causing folding and crumpling.
What is a fold mountain?
200
Where earthquakes occur.
What is a fault?
200
What is the difference between magma and lava?
Magma is located beneath the Earth, lava is magma that has reached the surface of the Earth.
200
Which seismic waves are the first to reach a seismograph station?
p-waves
200
The record of the earthquake waves called.
What is a seismogram?
200
A mountain that forms from a block of crust that is pushed upward or downward along a fault.
What is fault-block mountain?
300
The point beneath Earth's surface where an earthquake starts.
What is a focus?
300
List the 3 types of volcanoes.
What is cinder, composite and shield?
300
Which type of seismic wave causes the most amount of damage?
L-waves
300
scale used to measure the magnitude of an earthquake. From 1 (weakest) to 9 (strongest)
What is the Richter scale?
300
Magma rises but does not push through the crust.
What is a dome mountain?
400
Place on earth's surface directly above focus. Earth shakes the hardest here.
What is an epicenter?
400
Describe a composite cone.
Wide base/steep sides explosive and quiet eruptions made from layers of lava and layers of rock particles, dust and ash
400
Explain how scientists find the epicenter of an earthquake.
First they record the arrival times of the seismic waves. Then they subtract the p-wave arrival time from the s-wave arrival time. This is called the S-P interval. The S-P interval tells scientists how far away the epicenter is. Lastly, scientists need the S-P interval from 2 other seismograph stations. Where all three of the "circles" meet is where the epicenter it.
400
Sections of crust that move apart stretching rocks and causing them to snap, then a block moves down.
What is a normal fault?
400
Form at boundaries of plates from their motions that deform the crust, or from magma that has cooled at the surface.
What is a mountain?
500
What is a tsunami?
Huge wave produced by an earthquake, landslide, or volcanic eruption on sea floor.
500
Ocean plates move carrying volcano to mid-pacific hot spot.
What is formation of Hawaiian Islands?
500
How we measure quakes.
What is intensity and magnitude?
500
Rocks compress then one block moves up and one moves down.
What is a reverse fault?
500
Shapes our landforms every day.
What is weathering and erosion?
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