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swift chpt 6.2
chpt 6.2
| Question | Answer |
|---|---|
| earthquake | the shaking that results from the movement of rock under Earth's surface |
| focus | the point beneath Earth's surface where rock breaks under stress and causes an earthquake |
| epicenter | the point on Earth's surface directly above the focus |
| p wave | a type of seismic wave that compresses an expands the ground |
| s wave | a type of seismic wave the moves the ground up and down or side to side |
| surface wave | a type of seismic wave that forms when p waves and s waves reach the surface |
| Mercalli scale | a scale that rates earthquakes by their intensity and how much damage they cause on a particular place |
| magnitude | the measurement of an earthquakes strength based on seismic waves and movement along faults |
| Richter scale | a scale that rates an earthquakes magnitude based on the size of its seismic waves |
| seismograph | a device that records ground movements caused by seismic waves as they move through Earth |
| moment magnitude scale | a scale that rates earthquakes by estimating the total energy released by and earthquake |
Created by:
dswift
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