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Seismic Waves EQ Scales Plate Tectonics EQ Geography EQ Safety 1pt 1 pt 1 pt 1pt 1 pt 2 pt 2 pt 2pt 2pt 2 pt 3 pt 3 pt 3 pt 3 pt 3 pt 4 pt 4 pt 4pt 4 pt 4pt 5pt 5 pt 5 pt 5 pt 5 pt
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The direction seismic waves travel.
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What is all directions?
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The fastest of the seismic waves
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What is a Primary wave?
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Only travels through solids
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What is secondary wave?
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Measures and records seismic waves
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What is a seismograph?
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The point within the earth where the energy is first released.
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What is the focus?
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Expresses the intensity of an EQ
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What is the mercalli scale?
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Measures the amount of energy released during an EQ
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What is the Richter scale?
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Complete destruction
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What is XII on the Mercalli scale?
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Can be used to find distance from an epicenter if lag time is known
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What is a travel time graph?
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Zones of immobile rock along faults
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What are seismic gaps?
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Vibration of the earth’s crust
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What is an EQ?
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Most EQ happen here
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What are on plate boundaries?
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Two plates moving toward each other
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What is a convergent boundary?
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3 types of boundaries EQ occur
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What is convergent, divergent, transform?
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Theory used to explain EQ
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What is the elastic rebound theory?
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The minimum number of stations needed to find an epicenter
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What is 3?
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Body of water formed by diverging plates
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What is the Red Sea?
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Largest fault in CA
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What is the San Andreas?
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The 3 EQ zones
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What are Pacific Ring of fire, Mtn belt, Mid. Atl. ridge?
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Area around the Pacific Ocean noted for EQ and Volcanic activity
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What is the Pacific Ring of Fire?
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The safest part of the house in an EQ
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What is a doorway?
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Where you should not go if there is an EQ
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What is outside?
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Food, water, radio, flashlight, and batteries
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What are things to keep in case of an EQ?
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Water, gas and power
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What are things to shut off after an EQ?
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Person responsible for enlightening you about EQs
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Who is Ms Wessel?
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