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

TermDefinition
Earthquake Vibrations in the earth caused by the sudden release of energy usually as a result of the movement of rocks along a fault
Crust The earths outer layer
Fault A fracture in bed rock
Mantle The part of the earth between the crust and the core.
lithosphere The rigid outer part of the earth consisting the of the crust and up mantle.
Seismologist someone who studies earthquakes and seismic waves.
Convergent When two plates collide(crash) into each other.
Divergent When two plates move away from each other
Transform When two plates slide past each other
Subduction At the sides of the convection current
Convection
P-wave Causes buildings to contract and expand
S-wave Shakes building from side to side
Surface wave Shakes building violently
Focus The point beneath earths surface at which rock under stress breaks and triggers and earthquake
epicenter The point on the surface directly above the point at which and earthquake occurs
Mercalli scale rates the earthquake using steps 1-12
Ricter scale measures magnitude
Moment magnitude scale Estimates the total energy
Magnitude energy from an earthquake
Liquefaction occurs when an earthquakes violent shaking suddenly turns loose, soft soil into liquid mud
aftershock an earthquake that occurs after a large earthquake centered in the same area
Seismology Study of earthquakes
Seismograph A machine used to measure earthquakes
Compression The type of stress that pushes rock together
Tension The type a stress that stretches the rock
Plateau a large area of flat land elevated high above sea level
Shearing The type of stress that pushes rock in 2 different directions
Normal Fault The hanging wall slips downward below the foot wall
Reverse fault The hanging wall slides up and over the foot wall
Created by: 1964112972
Popular Engineering 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