EOSC105 NATURAL DISASTERS
EOSC105 NATURAL DISASTERS
EARTHQUAKES:
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Helpful information:https://open.oregonstate.education/earthquakes/chapter/earthquake-basics/
Be familiar with the following:
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What are some hazards associated with earthquakes?
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Focus and Epicenter:
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Elastic rebound theory:
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Seismic tomography:
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Seismogram:
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What is the difference between P and S waves (body waves)?
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Where do seismic waves (body waves) originate?
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How do P and S waves help us understand Earth’s internal structure?
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Surface waves –how are they different from body waves?
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Which are high frequency vs low frequency waves?
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How do the following respond to high frequency vs low frequency waves: 1) tall buildings, 2) short buildings How do the following respond to unconsolidated material vs rock (bedrock): 1) tall buildings, 2) short buildings
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Great earthquake:
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megathrust earthquake:
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What is magnitude?
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What is the difference between the Richter Magnitude and Moment Magnitude scales?
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How is magnitude calculated with each scale (in general)?
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A 7.0 is_____times more intense, regarding ground shaking, than a 6.0. However, releases _____ times more
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What is the modified Mercalli Scale?
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How does this scale differ from the magnitude scale?
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What is a shake map?
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What is triangulation? which seismic waves are used?
EOSC105 NATURAL DISASTERS
EQ HAZARDS
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What are some hazards associated with earthquakes? What was emphasized for each hazard in class?
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Name 2 poor (weak during ground shaking) building materials?
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2 building designs to minimize movement during EQ
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Conditions for Liquefaction to occur? Type of “earth material”? Why such a common hazard?
EOSC105 NATURAL DISASTERS
TSUNAMI
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Disturbing forces? How are the waves generated?
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Why more common in the Pacific Ocean?
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Why more destructive than wind waves?
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What is the average wave height and wavelength in the open ocean?
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How far and fast can they travel?
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Is there only one wave?
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How does the wave change as it approaches a coast? (length, height, and velocity)
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Understand how the waves are generated during subduction zone earthquakes (how does ocean floor move during megathrust EQ?
DETAILED ASSIGNMENT
