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12 Cards in this Set

  • Front
  • Back
damage hazards
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
actual point of rupture =
surface above rupture =
Richter Magnitude
based on height
of amplitude and distance
ruptures send out waves...
Fault types what is a fault?
definition: a fault is any crack which offsets rock
small offset (mm)
large offset (km)
3. topography changes
Reverse fault
hanging wall hanging wall moves up
2. offset of streams
Normal fault
hanging wall hanging wall
moves down
1. offset of strata
different rock types
folding, deformation
common near faults
Strike- Slip faults
movement primarily side-to-side, not up-down
Recognition of Faults-- 5 Ways
1. Offset of strata
2. Offset of streams
3. Topography
4. Offset of manmade features
5. Surface water