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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 =
hypocenter
epicenter
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
juxtaposed
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