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SCI 8

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  • fracture or zone of fractures between two blocks of rock.
    fault
  • how strong or weak the shaking is
    Intensity
  • agency of the government in the Philippines is monitoring the movement of the earth crust
    PHIVOLCS
  • stress is applied to all sides of the crust
    Confining Stress
  • Completely Devastating
    Intensity X
  • type of stress causes the formation of mountains
    Compression Stress
  • A force that holds the rocks together
    Friction
  • “Occurs when the “hanging wall” moves down relative to the “foot wall”.
    Normal Fault
  • The spot directly above the focus on the surface of the Earth
    Epicenter
  • Four types of stresses
    Compression, tension, shear, confining
  • measures the energy being released from the origin of the earthquake
    Magnitude
  • A fault on which the two blocks slide past one another.
    Strike - Slip Fault
  • Other term for reverse fault
    Thrust
  • happens when two plates rub against each other as they move in opposite directions.
    Shear Stress
  • forces the rocks to pull apart
    Tension Stress
  • Give the three types of fault
    normal fault, reverse fault, strike - slip fault
  • movement of a strike-slip fault
    sideways
  • “Occurs where the “hanging wall” moves up or is thrust over the “foot wall”.
    Reverse Fault
  • point along the fault where movements first occur
    Focus
  • caused by a sudden slip on a fault
    earthquake
  • causes the rocks to push or squeeze against one another.
    Compression Stress
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