Notes
Slide Show
Outline
1
Earthquakes 101 (EQ101)
2
Global Distribution of Earthquakes
3
Plate Tectonics
4
Plate Boundaries
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6
Three Types of Faults
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Strike-slip  Fault Example
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Strike-slip  Fault Example
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Normal Fault Example
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Thrust Fault Example
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Thrust Fault Example
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Total Slip in the M7.3 Landers Earthquake
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Slip on an earthquake fault
15
Slip on an earthquake fault
Second 2.0
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Slip on an earthquake fault
Second 4.0
17
Slip on an earthquake fault
Second 6.0
18
Slip on an earthquake fault
Second 8.0
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Slip on an earthquake fault
Second 10.0
20
Slip on an earthquake fault
Second 12.0
21
Slip on an earthquake fault
Second 14.0
22
Slip on an earthquake fault
Second 16.0
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Slip on an earthquake fault
Second 18.0
24
Slip on an earthquake fault
Second 20.0
25
Slip on an earthquake fault
Second 22.0
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Slip on an earthquake fault
Second 24.0
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Bigger Faults Make Bigger Earthquakes
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Bigger Earthquakes Last a Longer Time
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What Controls the Level of Shaking?
  • Magnitude
    • More energy released
  • Distance
    • Shaking decays with distance
  • Local soils
    • amplify the shaking
30
Is there such a thing as “Earthquake Weather”???
31
Earthquake Effects - Ground Shaking
32
Earthquake Effects -
Ground Shaking
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Earthquake Effects - Ground Shaking
34
Earthquake Effects - Ground Shaking
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Earthquake Effects - Ground Shaking
36
Earthquake Effects - Surface Faulting
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Earthquake Effects - Liquefaction
38
Earthquake Effects - Landslides
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Earthquake Effects - Fires
40
Earthquake Effects - Tsunamis
41
Seismic Waves
42
Earthquake Magnitude
43
Earthquake Location
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The San Andreas Fault
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Pacific-North American Plate Boundary
46
Will California eventually fall into the ocean???
47
Faults
of Southern
California
48
Shaking Hazard in Southern California
49
Faults in Our Local Area - Arcadia
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Faults in Our Local Area - Arcadia
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Faults in Our Local Area - Arcadia
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Real-time Earthquake Information
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ShakeMaps
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Did You Feel It?
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Faults in Our Local Area - La Canada