Gappa Earth: Chapter 5
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| most accurate scale we have to rate the magnitude of an earthquake; rates all types of earthquakes that are near or far | Moment Magnitude Scale
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| A plate boundary where two plates move past each other in opposite directions | transform boundary
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| A plate boundary where two plates move away from each other | divergent boundary
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| A plate boundary where two plates move towards each other | convergent boundary
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| A scale that rates earthquakes according to how much damage they cause. | Mercalli Scale
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| A scale that rates an earthquake's magnitude based only on seismograph readings. | Richter Scale
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| the process by which an earthquake’s violent shaking turns loose soil into liquid mud | liquefaction
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| a type of seismic wave that compresses and expands the ground; arrives first | P waves
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| a type of seismic wave that moves the ground side to side and up and down | S waves
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| a giant wave caused by an earthquake on the ocean floor | tsunami
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| changes in the earth's crust caused by stress | deformation
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| 2 things used to calculate the magnitude of an earthquake with Moment Magnitude Scale | seismograph readings and movement along the fault
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| 3 types of stress that cause deformation | compression, tension, shearing
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| What is the order in which seismic waves arrive? | First P waves, then S waves and last surface waves
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| Which types of seismic waves are the most violent? | surface waves
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| What are the three types of faults? | normal faults, reverse faults, strike slip faults
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| the hanging wall slides upwards | reverse fault
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| the hanging wall slides downward | normal fault
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| the hanging wall and footwall slip past each other in opposite directions | strike slip fault
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| How do scientist find the epicenter of an earthquake | use the difference in the arrival times of P waves and S waves at three different recording stations
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| the strength of an earthquake | magnitude
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| Are geologists able to predict earthquakes? | NO
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| measures the ground motion during an earthquake | seismograph
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| type of stress that pulls the rock apart and makes it thinner in the middle | tension
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| type of strees that pushes rock together, making it thicker in the middel | compression
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| type of stress the slides rock past each other in opposite directions | shearing
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
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