0
 
1. ______-places in the Earth’s crust where  rocks  have broken apart faults
A. ______ _____- areas where  tension  forces cause rock above the fault surface to move  downward normal faults
1)____________- a block of rock that forms the upper half of the fault 2)____________- a block of rock that forms the lowe...
B. _______ _____- areas where compression forces cause rock above the fault to move  _________ reverse fault upward
C. ________________- areas where shearing forces cause plates to move  sideways  past each other (horizontally) strike-sli...
Reverse
2. _____________- energy waves produced by an earthquake; earthquakes are the vibrations felt when this movement happens. ...
<ul><li>______________- travel through Earth by causing particles in rocks to compress and stretch apart in the  direction...
 
C. _____________- energy that travels out from the epicenter surface waves
<ul><li>D. Seismic waves ____ and ______  speed  as the density of rock changes </li></ul><ul><li>P-waves _____ when they ...
3. ______- point in the Earth’s interior where the  energy is released  during an earthquake  focus
4. _________- point on the Earth’s surface directly above the  focus epicenter
5. ___________- an instrument that measures earthquake activity seismometer
 
 
6. __________- measure of  the  energy released  by an earthquake activity magnitude
 
7. _____________-  describes  how much  energy   is released during an earthquake; for each 1.0, the amplitude of the larg...
8.__________- assesses _______; rates from I to XII; based on intensity (amount of damage) Mercalli damage
Damaging Earthquake in the US (1750 - 1996)                                                                               ...
 
9. ____________- occurs when wet or soft soil becomes more like a liquid from shaking (like a milkshake) liquefaction
10. ________- huge ocean waves caused by seismic activity tsunami
 
Tsunami-  Dec. 26, 2004 http://dsc.discovery.com/convergence/tsunami/videogallery/videogallery.html  Other sites http://ds...
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Earthquakes

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Pearson 6th Earth Science terms and defintions

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Transcript of "Earthquakes"

  1. 2. 1. ______-places in the Earth’s crust where rocks have broken apart faults
  2. 3. A. ______ _____- areas where tension forces cause rock above the fault surface to move downward normal faults
  3. 4. 1)____________- a block of rock that forms the upper half of the fault 2)____________- a block of rock that forms the lower half of the fault hanging wall footwall
  4. 5. B. _______ _____- areas where compression forces cause rock above the fault to move _________ reverse fault upward
  5. 6. C. ________________- areas where shearing forces cause plates to move sideways past each other (horizontally) strike-slip fault
  6. 7. Reverse
  7. 8. 2. _____________- energy waves produced by an earthquake; earthquakes are the vibrations felt when this movement happens. seismic waves
  8. 9. <ul><li>______________- travel through Earth by causing particles in rocks to compress and stretch apart in the direction of the wave; </li></ul><ul><li>fastest </li></ul><ul><li>B. _______________- travel through Earth causing particles in rocks to move at right angles to the direction of the waves </li></ul>primary waves secondary waves
  9. 11. C. _____________- energy that travels out from the epicenter surface waves
  10. 12. <ul><li>D. Seismic waves ____ and ______ speed as the density of rock changes </li></ul><ul><li>P-waves _____ when they contact the outer core. </li></ul><ul><li>S-waves are _______ completely by the outer core. </li></ul>3)___________-area where no S-waves are received bend change bend stopped shadow zone
  11. 13. 3. ______- point in the Earth’s interior where the energy is released during an earthquake focus
  12. 14. 4. _________- point on the Earth’s surface directly above the focus epicenter
  13. 15. 5. ___________- an instrument that measures earthquake activity seismometer
  14. 18. 6. __________- measure of the energy released by an earthquake activity magnitude
  15. 20. 7. _____________- describes how much energy is released during an earthquake; for each 1.0, the amplitude of the largest surface wave is 10 times greater; 32 times as much energy is released for each 1.0 increase Richter Scale
  16. 21. 8.__________- assesses _______; rates from I to XII; based on intensity (amount of damage) Mercalli damage
  17. 22. Damaging Earthquake in the US (1750 - 1996)                                                                                                              
  18. 24. 9. ____________- occurs when wet or soft soil becomes more like a liquid from shaking (like a milkshake) liquefaction
  19. 25. 10. ________- huge ocean waves caused by seismic activity tsunami
  20. 27. Tsunami- Dec. 26, 2004 http://dsc.discovery.com/convergence/tsunami/videogallery/videogallery.html Other sites http://dsc.discovery.com/convergence/tsunami/interactive/interactive.html
  21. 28. The End
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