Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

earthquakes and volc

QuestionAnswer
Where do volcanoes form? hot spots, convergent boundaries, divergent boundaries
A hot spot is a place where __________ from the mantle rises to the crust. magma
Why does Iceland have so many volcanoes? It is on both a hot spot and a divergent boundary.
Volcanic eruptions are classified into two categories: ___________. explosive and nonexplosive
Explosive eruptions are associated with _________ magma, which contains dissolved gases. thick
Which of the following is NOT a precursor event for a volcanic eruption? the air gets very dry
In the following set of numbers, what is the frequency of the number 12? 11, 12, 12, 12, 13, 13, 14, 14 3
Magnitude is a __________ that represents the strength or intensity of an event like a volcanic eruption. number
One way to mitigate the effects of a volcanic eruption is to evacuate the surrounding areas.
What two types of boundaries do earthquakes mostly occur at? convergent and transform
Earthquakes occur within tectonic plates ____________. along faults
As plates try to slide past each other they ___________, and earthquakes occur when the pressure builds up and they ___________. get stuck; snap free
What type of seismic wave travels through the Earth’s interior? body waves
Body waves have _________ wavelengths and travel __________ surface waves. shorter; faster than
The _________ of an earthquake is the location on Earth’s surface directly above the earthquake’s focus. It is also where the most shaking usually occurs. epicenter
The shaking that people feel from an earthquake is caused by ___________. surface waves
Do earthquakes have precursor events? no, never
Earthquakes are _________ to happen where they’ve happened before. likely
Which of the following is an example of how Japan mitigates the effects of its earthquakes? High-rise buildings are built on top of rubber shock absorbers.
To decide on criteria for structure strength, engineers look at ________ to determine __________. historical data; earthquake hazard risks
The downhill movement of earth material caused by gravity is known as _________. mass wasting
What kind of slope will generally produce the fastest, most dangerous mass wasting event? steep and wet
Which of the following is NOT a type of mass wasting event? waterflow
To mitigate the losses from mass wasting, engineers can __________ steep slopes. stabilize
A series of ocean waves caused by the sudden vertical movement of a large amount of ocean water is called a(n) ___________. tsunami
Tsunamis form because of a sudden event __________, like earthquakes, volcanic eruptions, underwater landslides, and asteroid impacts. on the seafloor
What are the most common cause of tsunamis? earthquakes
In deep water, tsunamis start off as ___________ waves that travel __________. small; very quickly
Most tsunamis take place around ___________ because of all the volcanic and earthquake activity. the Pacific Ring of Fire
Why can the location of tsunamis be predicted? Tsunamis have precursor events.
Scientists can calculate the time of arrival of a tsunami at a specific location by measuring the __________ of the tsunami. speed
Which of the following is NOT a recommended strategy to mitigate tsunami damage? build dams to avoid having excess water
Tsunami sensors work by detecting ____________. small variations in water pressure
How does the tsunami sensor pass information to the surface buoy? sound waves
What is the problem that scientists had to solve for the DART system to work properly? There were long periods of time when no data reached the buoy.
Which of the following is NOT an improvement made to the DART system? increased the sensitivity of the sensor so it could see smaller events
The two main causes of floods are _______ and ________. runoff; storm surges
Created by: RobRand
Popular Earth Science sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards