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Earthquake Ground Shaking and its Potential Effects
in the San Francisco Bay Region
for a Repeat of the Great 1906 Earthquake
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Earthquake ground shaking and resultant damage may
vary significantly throughout an urbanized region.
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Strong Ground Shaking depends on:
Source Attributes -
Type (Strike-Slip, Thrust, ...);
Size (Magnitude)
Distance from the rupture -
Attenuation due to: geometrical spreading, intrinsic absorption, and crustal structure
Local Site Conditions -
Shear velocity and distribution of rock and soil deposits.
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Maps of Ground Shaking in an urbanized region must account for variations in each of these factors.
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