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Earthquake Waves

Earth Science Terms

definitionterm
a vibration of the Earth produced by the rapid release of energy Earthquake
The point within the earth where the Earthquake starts Focus
Point on Earth's surface directly above where earthquakes starts. Epicenter
rocks/plates snapback into an unbent position Elastic Rebound
movement that follows a major earthquake (smaller earthquakes) Aftershock
Small earthquakes before a major one Foreshock
Measures the amount of shaking at a particular location Intensity
measures the size of the earthquake at its source no distance factor Magnitude
Intensity based on observed effects of quake on Earths surface, humans, and manmade structures Mercalli Scale
Earthquake energy from seismic waves using a seismograph Ricter 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 Longitudinal wave
Material a wave moves through medium crest
Upward 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 waves; Transverse; Shake and Shear; Medium speed; only goes through a solid S waves
Slowest; goes through solids and liquids; most damaging Surface waves
The time spent getting there Travel-time
The technique for establishing two points Triangultion
"Flaw" where earthquakes may occur Fault
Created by: allygmck
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