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12 Cards in this Set
- Front
- Back
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damage hazards
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soft first floor(house on stilts-garage)
Bay area-flat =bay fill= un-stabel soil- bedrock best unconsolidated amplifies shaking liquefication- ground becomes liquid-things sink |
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actual point of rupture =
surface above rupture = |
hypocenter
epicenter |
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Richter Magnitude
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based on height
of amplitude and distance |
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ruptures send out waves...
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Fault types what is a fault?
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definition: a fault is any crack which offsets rock
small offset (mm) large offset (km) |
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3. topography changes
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Reverse fault
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hanging wall hanging wall moves up
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2. offset of streams
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Normal fault
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hanging wall hanging wall
moves down |
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1. offset of strata
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different rock types
juxtaposed folding, deformation common near faults |
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Strike- Slip faults
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movement primarily side-to-side, not up-down
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Recognition of Faults-- 5 Ways
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1. Offset of strata
2. Offset of streams 3. Topography 4. Offset of manmade features 5. Surface water |
