Chiou and Youngs PEER-NGA Empirical Ground Motion Model for ...

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Figure 5: VS30-distance-region distribution of selected recordings. Closed symbols indicated measured values, open symbols indicate inferred values. NEHRP site classes are indicated along the bottom edge. Additional analysis was performed as part of this study to improve the correlation between surface geology and VS30 for the Taiwan sites. This analysis is described in Appendix C. Additional velocity measurements and incorporation of elevation as a predictor variable were used to refine the VS30 estimates for the Taiwan sites. The data distributions plotted on Figures 4 and 5 indicate that the PEER-NGA database is primarily a soil/soft rock database. Sediment Thickness: The thickness of the near-surface sediments is represented by the depths to shear eave velocity horizons of 1.0, 1.5, and 2.5 km/s. These data are only available in the PEER-NGA database for sites within the Southern California Earthquake Center 3-D basin model (Magistrale et al., 2000, 200?) and for sites in the San Francisco Bay area (J. Boatwright, personal communication, 2005?). Figure 6 shows the relationship between VS30 and Z1.0 and between VS30 and Z2.5. The dashed line shows the relationship used to infer missing values of Z1.0. C&Y2006 Page 11
Figure 6: Relationship between VS30 and Z1.0 and Z2.5 for sites contained in the PEER-NGA database. Dashed line on plot for Z1.0 was used to infer missing values. SUPPLEMENTAL EMPRIRICAL DATA The PEER-NGA strong motion data were supplemented with ground motion data from the California TriNet system. Time histories recorded at broad band stations for events 0163, 0167, and 0170 were provided by Dave Boore (personal communication, 2005). Peak acceleration values and estimates of site conditions for many other events were supplied by Jack Boatwright (2005, 2006 personal communication) and were obtained from the TriNet website. Appendix D describes the development of metadata and processing of these strong motion values. The data were used to provide additional guidance on function forms and provide additional constraints on parameters of the ground motion model. C&Y2006 Page 12
Page 1 and 2: Chiou and Youngs PEER-NGA Empirical
Page 3 and 4: data are consistent with strong mot
Page 5 and 6: Figure 1: Magnitude-distance-region
Page 7 and 8: Figure 2: Empirical ground motion d
Page 9 and 10: EQID Earthquake M Table 3: Inferred
Page 11: Site Average Shear Wave Velocity: A
Page 15 and 16: 1 ) ∝ C2 × M + ( C2 − C ) × l
Page 17 and 18: Figure 9: Peak acceleration data fr
Page 19 and 20: C4+C5M slowly and the value of the
Page 21 and 22: allows the interpretation of the co
Page 23 and 24: Figure 13: Coefficients resulting f
Page 25 and 26: the top of rupture located at x = 0
Page 27 and 28: Figure 18: Intra-event residuals fo
Page 29 and 30: Figure 21: Variation of HW* with ma
Page 31 and 32: The interpretation of the parameter
Page 33 and 34: to the PEER-NGA pga data selected f
Page 35 and 36: EFFECT OF DATA TRUNCATION The initi
Page 37 and 38: term [ 1 Φ( y ( θ ) + τ ⋅ z ,
Page 39 and 40: Table 4: Estimate of Anelastic Atte
Page 41 and 42: data truncated at a maximum distanc
Page 43 and 44: faulting earthquakes at long period
Page 45 and 46: Slope -1.5 -1.0 -0.5 0.0 0.5 1.0 0.
Page 47 and 48: C&Y2006 Page 46 Table 5: Coefficien
Page 49 and 50: c1 of T0.010S c1 of T1.000S MODEL R
Page 51 and 52: esid 1 0 -1 -2 resid resid 1 0 -1 -
Page 53 and 54: esid resid resid 1 0 -1 -2 1 0 -1 -
Page 55 and 56: esid 2 1 0 -1 -2 SCEC Version 2 0 2
Page 57 and 58: Amplification w.r.t. Vs30 = 1130 m/
Page 59 and 60: Sa(g) Sa(g) 10 1 0.1 0.01 10 1 0.1
Page 61 and 62: Sa (g) Sa (g) 1 0.1 0.01 0.001 0.00
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Sa (g) Sa (g) 1 0.1 0.01 0.001 1 0.
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EXAMPLE CALCULATIONS FORTRAN routin
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Table 6: Example Calculations Perio
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REFERENCES Abrahamson, N.A., and Si
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Frankel, A., A. McGarr, J. Bicknell
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Appendix A Recordings from PEER-NGA
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RSN EQID Earthquake M Station No, S
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Appendix B Estimation of Distance a
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Figure B-2: Data for aspect ratio v
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Probability . 0.18 0.16 0.14 0.12 0
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Appendix C Estimation of Vs30 at CW
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Percent of Total 50 40 30 20 10 0 G
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Vs30 (m/sec) 1400 1200 1000 800 600
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Figure D-1. Epicenter distribution
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PSA (g) 10^-1 10^-2 10^-3 10^-4 10^
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PSA (g) 10^-1 10^-2 10^-3 10^-4 10^
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PSA (g) 10^-1 10^-2 10^-3 10^-4 10^
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PSA (g) 10^-1 10^-2 10^-3 10^-4 10^
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PSA (g) 10^-1 10^-2 10^-3 10^-4 10^
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PSA (g) 10^-1 10^-2 10^-3 10^-4 10^
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T0.010S 1 0.1 0.01 1 0.1 0.01 1130
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T0.010S 1 0.1 0.01 1 0.1 0.01 1130
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T0.010S 1 0.1 0.01 1 0.1 0.01 1130
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T0.010S 1 0.1 0.01 1 0.1 0.01 1130
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T0.010S 1 0.1 0.01 1 0.1 0.01 1130
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T0.010S 1 0.1 0.01 1 0.1 0.01 1130
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T0.010S 1 0.1 0.01 1 0.1 0.01 1130
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T0.010S 1 0.1 0.01 1 0.1 0.01 1130
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T0.010S 1 0.1 0.01 1 0.1 0.01 1130
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T0.010S 1 0.1 0.01 1 0.1 0.01 1130
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T0.200S 1 0.1 0.01 1 0.1 0.01 1130
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T0.200S 1 0.1 0.01 1 0.1 0.01 1130
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T0.200S 1 0.1 0.01 1 0.1 0.01 1130
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T0.200S 1 0.1 0.01 1 0.1 0.01 1130
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T0.200S 1 0.1 0.01 1 0.1 0.01 1130
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T0.200S 1 0.1 0.01 1 0.1 0.01 1130
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T0.200S 1 0.1 0.01 1 0.1 0.01 1130
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T0.200S 1 0.1 0.01 1 0.1 0.01 1130
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T0.200S 1 0.1 0.01 1 0.1 0.01 1130
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T0.200S 1 0.1 0.01 1 0.1 0.01 1130
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T1.000S 1 0.1 0.01 0.001 1 0.1 0.01
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T1.000S 1 0.1 0.01 0.001 1 0.1 0.01
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T1.000S 1 0.1 0.01 0.001 1 0.1 0.01
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T1.000S 1 0.1 0.01 0.001 1 0.1 0.01
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T1.000S 1 0.1 0.01 0.001 1 0.1 0.01
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T1.000S 1 0.1 0.01 0.001 1 0.1 0.01
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T1.000S 1 0.1 0.01 0.001 1 0.1 0.01
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T1.000S 1 0.1 0.01 0.001 1 0.1 0.01
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T1.000S 1 0.1 0.01 0.001 1 0.1 0.01
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T1.000S 1 0.1 0.01 0.001 1130 m/s 5
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T3.000S 0.1 0.01 0.001 0.1 0.01 0.0
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T3.000S 0.1 0.01 0.001 0.1 0.01 0.0
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T3.000S 0.1 0.01 0.001 0.1 0.01 0.0
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T3.000S 0.1 0.01 0.001 0.1 0.01 0.0
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T3.000S 0.1 0.01 0.001 0.1 0.01 0.0
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T3.000S 0.1 0.01 0.001 0.1 0.01 0.0
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T3.000S 0.1 0.01 0.001 0.1 0.01 0.0
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Chiou and Youngs PEER-NGA Empirical Ground Motion Model for ...

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