Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
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
Normal Size Small Size show me how
science ch 8 vocab
| Term | Definition |
|---|---|
| seismology | the study of earthquakes. |
| deformation | the bending, tilting, and breaking of the earths crust; the change in the shape of rock in response to stress. |
| elastic rebound | the sudden return of elastically deformed rock to its undeformed state. |
| seismic wave | a wave of energy that travels through the earth, away from an earthquake in all directions |
| P wave | a seismic wave that causes particles of rock to move in a back-and-forth direction. |
| S wave | a seismic wave that causes particles of rock to move in side-to-side direction. |
| seismograph | an instrument that records vibrations on the ground and determines the location and strength of an earthquake. |
| seismogram | a tracing of earthquake motion that is created by a seismograph |
| epicenter | the point on earths surface directly above an earthquake's starting point, or focus |
| focus | the point along a fault at which the first motion of an earthquake occurs. |
| gap hypothesis | a hypothesis that is based on the idea that a major earthquake is more likely to occur along the part of an active fault where no earthquakes have occurred for a certain for a certain period of time |
| seismic gap | an area along a fault where relatively few earthquakes have occurred recently but where strong earthquakes have occurred in the past |
Created by:
Xavier Vanhorn
Popular Science sets