Inside Earth (p. 10)
Earthquakes
T-T-Tectonic
p. 11 Problems
Miscellaneous
100
These are the two layers that make up the lithosphere.
What are the crust and the upper / rigid mantle?
100
The Mercalli scale is a rating of this quality.
What is earthquake damage (in a given region)?
100
Mantle rock that is exposed to the surface (i.e. water or air) is called this.
What is lava?
100
True or False: The distance in arrival times for a P-wave and an S-wave is equivalent to the distance in travel times for those same waves.
What is True?
100
The St. Helena Hot Spot is on this tectonic plate.
What is the African Plate?
200
This is the layer of Earth that tectonic plates float on.
What is the asthenosphere?
OR
What is the plastic mantle?
200
The San Andreas Fault is this kind of fault.
What is a strike-slip fault?
200
These two present-day continents, both of which partly reside in the Southern Hemisphere, look like they could easily fit together like puzzle pieces. They both lend support to the previous existence of supercontinents.
What are South America and Africa?
[No partial credit for this one.]
200
If an S-wave's travel time is 7 minutes, 20 seconds,
this is what the corresponding P-wave travel time would be.
What is 4 minutes, 5 seconds?
[Give or take 5 seconds]
200
Subduction occurs at this general type of tectonic plate boundary.
What is convergent?
300
This is the hottest temperature of the stiffer mantle.
What is 4950 degrees Celsius?
(Give or take 50 degrees)
300
This is a ________ fault.
What is a normal fault?
300
These are the two notable hot spots in the US.
What are Hawaii and Yellowstone?
300
This is the epicenter distance from an earthquake whose P-wave travel time is 8 minutes, 20 seconds.
What is 5,000 km?
OR
What is 5.0 x 103 km?
300
This is the actual physical location that an earthquake starts underground.
What is the focus?
400
This is the pressure range of the outer core.
What is between 1.5 million & 3.1 million atmospheres?
400
This is a ________ fault.
What is a reverse fault?
400
Magnetic poles switching is an observation, one that helps us establish the age of crust coming from this general type of tectonic plate boundary.
What is divergent?
400
If an earthquake's epicenter is 7,600 km from a seismic station, this is what the corresponding P-wave travel time would be.
What is 11 minutes?
400
This is the main reason scientists understand properties of Earth's layers below the crust.
What is seismic data?
OR
What is earthquake data?
500
This is the phase of the inner core.
What is solid?
500
This is how much more intense an 8.0 magnitude earthquake is compared to a 4.0 earthquake on the Richter scale.
What is 10,000 times more?
OR
What is 104 times more?
500
This is the mechanism in the plastic mantle that fuels the recycling of old crust and the making of new crust.
What is convection?
500
This is the difference in arrival times between the P-wave and S-wave when the distance to the epicenter is 2,000 km.
What is 3 minutes, 20 seconds?
(Give or take 5 seconds)
500
If you wanted to locate a sample of the newest seafloor in a given ocean, this is where you would go in relation to a mid-ocean ridge.
What is as close as possible to a mid-ocean ridge?