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Earthquake Terms

Earthquake

TermDefinition
Aftershock Less powerful shock following the principal shock of an earthquake
Earthquake Vibration of earth caused by release of energy that has been stored in earths rocks as they have ground past one over time
Epicenter Point on earths surface directly above focus of an earthquake
Fault Break or crack along which rocks move
Magnitude The strength of an earthquake
Richter Scale A mathematical way to determine the amount of energy released by an earthquake
Seismograph A device to measure the strength of an earthquake
Tsunami A long high sea wave caused by an earthquake
Seismologist person who studies earthquake
P Waves waves compress and expand like an accordion or slinky
S Waves waves vibrate from side to side or up and down
L Waves waves move up and down
P Wave Fastest of all waves
P Waves Travel through solids and liquids
S Waves Travel through solids
L Waves Slowest of all waves
L Waves Travel through crust on Earth’s surface
Richter Scale Uses a scale of 1-10
Mercalli Scale Measures the intensity of an earthquake
Mercalli Scale Uses Roman Numerals 1-12
Ring of Fire the volcano and earthquake epicenters that seemingly circle the Pacific Ocean.
Transform Boundary Plates slide past each other
Divergent Boundary Plates pull apart from each other
Convergent Boundary Plates move together
Seismogram recording of earthquake waves
Created by: kspoltman1
Popular Earth Science sets

 

 



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