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Earthquake Waves

Earth science terms of earthquakes and seismic waves

TermDefinition
A vibration of the earth produced by the rapid release of energy Earthquake
The point within the earth where the earthquake starts Focus
The location on the surface directly above the focus Epicenter
The rocks/plates snap back into an unbent position Elastic Rebound
The movement that follows a major earthquake(smaller earthquakes) Aftershock
Small earthquakes before a major earthquake Foreshock
Measures the amount of shaking in a particular location...farther from focus=less! Intensity
Measures the size of the earthquake at its source....no distance factor Magnitude
Measures intensity based on observed effects of quake on earths surface,humans, and manmade structures Mercalli Scale
Measures earthquake energy from seismic waves using a seismograph Richter Scale
Instrument for recording earthquakes Seismograph
The data output (recording) of a seismograph Seismogram
Disturbance that transmits energy Wave
Wave particles vibrate perpendicular to wave direction Transverse Wave
Wave particles vibrate parallel to wave direction Longitude Wave
Material a wave moves through Medium
Upward displacement of a wave Crest
Downward displacement of a wave Trough
Height of a wave Amplitude
Distance between consecutive waves Wavelength
Primary body wave (earthquake); fastest; least damaging; longitudinal wave P Waves
Secondary body wave; medium speed; medium damage; Transverse wave S Waves
Wave combo of both S and P waves and same action; slowest and most damaging Surface Waves
Use delay to find distance to epicenter Travel-Time Graph
Locating the epicenter Triangulation
Created by: tessa320
Popular Earth Science sets

 

 



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