1 / 21

Earthquake Vocabulary

Earthquake Vocabulary. Stress Stress. A force that acts on rock to change its shape or volume. Tension. Stress that stretches rock so that it becomes thinner in the middle. Compression. Stress that squeezes rock until it folds or breaks. Shearing.

driscoll-trevino
Download Presentation

Earthquake Vocabulary

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Earthquake Vocabulary

  2. StressStress • A force that acts on rock to change its shape or volume.

  3. Tension • Stress that stretches rock so that it becomes thinner in the middle

  4. Compression • Stress that squeezes rock until it folds or breaks

  5. Shearing • Stress that pushes masses of rock in opposite directions; in a sideways movement

  6. Normal Faults • A type of fault where the hanging wall slides downward caused by tension in the crust

  7. Reverse Faults • Type of fault where the hanging wall slides upward caused by compression in the crust

  8. Strike-Slip Fault • A type of fault in which rocks on either side move past each other sideways with little up or down motion

  9. Anticline • An upward fold in rock formed by compression of Earth’s crust

  10. Syncline • A downward fold in rock formed by compression in Earth’s crust

  11. Plateau • A large area of flat land elevated high above sea level

  12. Epicenter The point on Earth’s surface directly above an earthquakes’ focus

  13. P Wave • A type of seismic wave that compresses and expands the ground

  14. S Wave • A type of seismic wave that moves the ground up and down or side to side

  15. Surface Waves • A type of seismic wave that forms when P waves and S waves reach Earth’s surface

  16. Magnitude • The measurement of an earthquakes’ strength based in seismic waves and movement along fault

  17. Seismograph • A device that records ground movements caused by seismic waves as they move through Earth.

  18. Richter Scale • A scale that rates an earthquakes’ magnitude based on the size of it’s seismic waves

  19. Aftershock • An earthquake that occurs after a larger earthquake in the same area

  20. Tsunami • A large wave produced by an earthquake on the ocean floor

  21. Liquefaction • The process by which an earthquake’s violent movement suddenly turns loose soil into liquid mud

More Related