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CALCULATION OF WEIGHTED AVERAGE 2008 NGA MODELS: 6y Linda AI Atik,PEER-Sep,200,Latik05 erkeley.edu Fault Name: Calaveras Fault Zone This Excel file calculates the weighted average o/the natural logarithm o/the spectral values from the NGA models NGA Model: AS08 BA08 CB08 CY08 108 Weigbh AS08:Abrahamson&Silva 2008 NGA Model BA08:Boom&Atkinson 2008 NGA Model CS08:Campbell&Bozorgnia 2008 NGA Model CY08:Chiou&Youngs 2008 NGA Model 108:Idriss 2008 NGA Model Explanatory Variables Geometric Mean Horizontal Component IIS GMPT(s) SA Median SA Medlan+Nn SA Median-Nn SD Median e%-Damped pseud*-Absolute Acceler.lion Resporse Spectrum ' 7.03 PSA(g) 0.010 8.455E-02 1.428E-01 5.007E-02 2.099E-04 10 SO(cm) 0.020 8.592E-02 1.453E-01 5.079E-02 8.531E-04 R-(km) 0.030 9.118E-02 1.564E-01 5.315E-02 2.037E-03 37.00 0.050 1.088E-01 1.915E-01 6.179E-02 6.751E-03 0.075 1.386E-01 2.498E-01 7.683E-02 1.935E-02 t R,,a(km) 0.10 1.640E-01 2.979E-01 9.027E-02 4.071E-02 37.00 0.15 1.942E-01 3.532E-01 1.068E-01 1.085E-01 ' 0.20 2.005E-01 3.614E-01 1.112E-01 1.991E-01 Rx(krrl) 015 1.821E-01 3.270E-01 1.014E-01 2.825E-01 m o.t 0.00 0.30 1.679E-01 3.014E11 9.354E-02 3.751E-01 0.40 1.432E-01 2.565E-01 7.994E-02 5.687E-01 a U 0.50 1.237E-01 2.231E-01 6.854E-02 7.675E-01 0 0.75 8.364E-02 1.542E-01 4.537E-02 1.168E+00 m 1.0 8:185E-02 1.153E-01 3.318E-0'1 1.535E+00 H o.ot Fmv 1.5 3.793E-02 7.172E-02 2.006E-02 2.119E+00 0 2.0 2.698E-02 5.133E-02 1.418E-02 2.679E+00 3.0 1.674E-02 3.195E-02 8.774E-03 3.741E+00 Fe 4.0 1.227E-02 2.345E-02 6.416E-03 4.872E+00 *.oat F_ 0.01 0.1 t to 0 5.0 9.942E-03 2.002E-02 4.937E-03 6.170E+00 Period(s) m. 7.5 5.210E-03 1,114E-02 2.437E-03 7.275E+00 Fnw 10.0 3.296E-03 7.518E-03 1.445E-03 8.181E+00 0 Z...(1m) PGA(g) 0 0.085 1.428E-01 5.007E-02 ' 130 PGV(cls) -1 7.160E-00 1.210E+01 4.236E+00 S 90 V..o(m/sec) 760 Fm.a��ma 0 Z r.ti ' DEFA DEFINITION OF PARAMETERS: Z¢s(km) NNumber of standard deviations to be considered in the calculations DEFAULT PSA =Pseudo-absolute acceleration response spectrum(g;5%damping) PGA =Peak ground acceleration(g) W(km) PGV =Peak ground velocity(cnvs) 1 SD =Relative displacement response spectrum(cm;5%damping) E=Moment magnitude Fxs =Closest distance to coseismic rupture(km),used in AS08,CB08 and CY08.See Figures a,b and c for illustation 0 =Closest distance to sudace projection of coseismic rupture(km).See Figures a,b and c for illustation Rx =Horizontal distance from top of rupture measured perpendicular to fault strike(km),used in AS08 and CY08.See Figures a,b and c for illustation HW Taper U =Unspecified-mechanism factor.' i for unspecified;0 otherwise,used in BA08 0 =Reverse-faulting factor.I for strike slip,normal,normaloblique;1 for reverse,reverse-oblique and thrust =Normal-faulting factor:0 for strike slip,reveree,reverse-oblique,thrust and normal-oblique;1 for normal =Hanging-wall factor.1 for site on down-dip side oftop of rupture;0 otherwise,used in AS08 and CY08 =Depth to top of coseismic rupture(km),used in AS08,C808 and CY08 =Average dip of rupture plane(degrees),used in AS08,CB08 and CY08 =Average shear-wave velocity in top 30m of site profile F,,,,,,,.,e=Vs30 Factor.1 9 VS30 is measured,0 if Vs30 is Inferred,used in AS08 and CY08 Z,,o =Depth to t.0 km/sec velocity horizon(m),used in AS08 and CY08.Enter"DEFAULT"in order to use the default values or enter your site specific number �=Depth of 2.5 km/s shear-wave velocity horizon(km),used in CB0SL Enter"DEFAULT'in order to use the default value or enter your she specific number ' W =Fault rupture width(km),used in AS08 Fxs =Aftershock factor 0 for mainshock;t for aftershock,used in AS08 and CY08 HW Taper=Tochoose the hanging wall taper to be used in AS08.Enter 0 to use the hanging well taper as published in Abrahamson and Silva(2008), or enter 1 to use the revised hanging wall taper suggested by Norm Abrahamson