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' CALCULATION OF WEIGHTED AVERAGE 2008 NGA MODELS: by Linda A/Atik,PEER-Sep,2009-Latfk@berkeley.edu berkeley.edu Fault Name: Ortigalita This Excel file calculates the weighted average of the natural logarithm of the spectral values from the NGA models ' NGA Weight:Model: AS08 BA08 CB08 CY08 108 AS08:Abrahamson 6 Silva 2008 NGA Model BA08:Boom&Atkinson 2008 NGA Model N CB08:Campbell&Bozorgnia 2008 NGA Model CY08:Chiou&Youngs 2008 NGA Model ' 108:Idriss 2008 NGA Model Explanatory Variables Geometric Mean Horizontal Component GMP T(s) SA Median SA Median+No SA Median-No SD Median 5%-Damped Pseudo-Absolute Acceleration Response Spectrum PSA(9) 0.010 6.615E-02 1.117E-01 3.916E-02 1.642E-04 10 SD(cm) 0.020 6.712E-02 1.136E-01 3.966E-02 6.665E-04 ' Rrax,(km) 0.030 7.083E-02 1.216E-01 4.126E-02 1.582E-03 50.00 0.050 8.337E-02 1.470E-01 4.730E-02 5.174E-03 0.075 1.039E-01 1.877E-01 5.756E-02 1.451E-02 t Ria(krn) 0.10 1.216E-01 2.212E-01 6.686E-02 3.019E-02 50.00 0.15 1.442E-01 2.623E-01 7.922E-02 8.052E-02 0.20 1.521E-01 2.741E-01 8.436E-02 1.510E-01 Rx(km) 0.25 1.410E-01 2.533E-01 7.854E-02 2.188E-01 u 0.7 0.00 0.30 1.320E-01 2.370E-01 7.356E-02 2.950E-01 0.40 1.136E-01 2.036E-01 6.344E-02 4.514E-01 G U 0.50 9.945E-02 1.794E-01 5.512E-02 6.172E-01 0 0.75 6.885E-02 1.269E-01 3.735E-02 9.614E-01 e 0.ot 1.0 5.135E-02 9.571E-02 2.755E-02 1.275E+00 rn ' Fav 1.5 3.188E-02 6.027E-02 1.686E-02 1.781E+00 0 2.0 2.284E-02 4.345E-02 1.201E-02 2.268E+00 3.0 1.426E-02 2.721E-02 7.471E-03 3.185E+00 F 4.0 1.048E-02 2.003E-02 5.480E-03 4.161E+00 0.0ot NN 0.01 0.1 1 10 05.0 8.509E-03 1.714E-02 4.225E-03 5.281E+00 Period(a) 7.5 4.564E-03 9.758E-03 2.134E-03 6.372E+00 Faw 10.0 2.935E-03 6.694E-03 1.286E-03 7.285E+00 0 Z_(km) PGA(g) 0 0.066 1.117E-01 3.916E-02 ' 0.00 PGV(cis) -1 6.025E+00 1.018E+01 3.565E+00 5 90 s(M/sec) ' 760 Fm-- 0 (m) DEF DEFAULT DEFINITION OF PARAMETERS: Zzs(km) N =Number 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(krrr) PGV =Peak ground velocity(cm/s) 1 SD =Relative displacement response spectrum(cm;5%damping) Moment magnitude Fps -Closest distance to coseismic rupture(km),used in AS08,CB08 and CY08.See Figures a,b and c for illustation 0 =Closest distance to surface 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:1 for unspecified;0 otherwise,used in BA08 =Reverse-faulting factor:0 for strike slip,normal,normal-oblique;1 for reverse,reverse-oblique and thrust =Normal-faulting factor:0 for strike slip,reverse,reverse-oblique,thrust and normal-oblique;1 for normal Hanging-wall factor:1 for site on downdip side of top of rupture;0 otherwise,used in ASOS and CY08 Z =Depth to top of coseismic rupture(km),used in AS08,CB08 and CYOS =Average dip of rupture plane(degrees),used in AS08,CB08 and CY08 =Average shear-wave velocity in top 30m of site profile F-, =Vs30 Factor:1 if VS30 is measured,0 if Vs30 is inferred,used In AS08 and CYOS Zt,e =Depth to 1.0 krNsec 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 C808.Enter"DEFAULT"in order to use the default value or enter your site specific number W =Fault rupture width(km),used in AS08 F,rs =Aftershock factor:0 for mainshock;1 for aftershock,used in AS08 and CY08 KW Taper=To choose the hanging wall taper to be used in AS08.Enter 0 to use the hanging wall taper as published in Abrahamson and Silva(2008), or enter 1 to use the revised hanging wall taper suggested by Norm Abrahamson