C.H. Cramer
2003
<p><span>When a </span>site<span>-</span>specific<span> </span>probabilistic<span> ground-motion estimate is required, the full </span>site<span>-amplification distribution should be used instead of a single deterministic median value. A </span>probabilistic<span> methodology using </span>site<span>-amplification distributions to modify rock ground-motion attenuation relations into </span>site<span>-</span>specific<span> relations prior to calculating </span>seismic<span> </span>hazard<span> has been developed and applied at two selected sites in the central United States: Memphis, Tennessee, and Paducah, Kentucky. The use of a </span>completely<span> </span>probabilistic<span> approach can make about a 10% difference in ground-motion estimates over simply multiplying a bedrock </span>probabilistic<span> ground motion by a median </span>site<span>-amplification factor at a 1 in 2475 annual probability of exceedance and even larger differences at smaller probabilites of exceedance. The value of this approach is that a </span>probabilistic<span> answer incorporating the uncertainty in our knowledge of </span>site<span> amplification of ground motions can be calculated.</span></p>
application/pdf
10.1785/0120020206
en
Seismological Society of America
Site-specific seismic-hazard analysis that is completely probabilistic
article