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PEER Arizona strong-motion database and GMPEs evaluation

PEER Arizona strong-motion database and GMPEs evaluation

Kishida, Tadahiro, Kayen, Robert E., Ktenidou, Olga-Joan, Silva, Walter J., Darragh, Robert B. and Watson-Lamprey, Jennie (2014) PEER Arizona strong-motion database and GMPEs evaluation. [Working Paper]

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This report summarizes the products and results of a study on the collection, processing, and analysis of earthquake ground-motions recorded in Arizona at several recording stations within 200 km from the Palo Verde Nuclear Generating Station in central Arizona. The recorded ground motion in Arizona were compiled and processed according to the Pacific Earthquake Engineering Research Center’s (PEER) record-processing standards. Shear wave velocity profiles at ten recording stations were measured through the spectral analysis of surface wave dispersion technique. Additionally, “kappa” a measure of energy dissipation in the top 1 to 2 km of the crust, was estimated by three methodologies. The average κ0 (kappa at zero-kilometer distance) was estimated from all sites as 0.033 sec. Finally, response spectra of the recorded ground motions in Arizona were compared with those predicted by the NGA-West2 ground motion prediction equations at large distances in Arizona. The comparison showed that overall the recorded 5% damped response spectral ordinates were over predicted by the NGA-West2 models by a range of 0-0.35 natural log units for events occurring in Central California, and by a range of 0.2-0.7 natural log units for events occurring in Southern California and the Gulf of California.

Item Type: Working Paper
Uncontrolled Keywords: Weak motion dataset; critical facility; kappa; Vs profile
Subjects: Q Science > QE Geology
T Technology > TA Engineering (General). Civil engineering (General)
Faculty / School / Research Centre / Research Group: Faculty of Engineering & Science
Faculty of Engineering & Science > School of Engineering (ENG)
Last Modified: 17 Oct 2016 09:14

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