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

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The third condition is represented by specifying the ground motion component to be the orientation-independent ground motion measure GMRotI50 defined by Boore et al. (2006). Use of this ground motion measure eliminates recordings for which only a single horizontal component was obtained. The notable effect of imposing this condition is the elimination of the Cholame-Shandon Array #2 recording from the 1966 Parkfield earthquake. The ground motion model developed in this study explicitly accounts for site conditions. Therefore, recordings from sites for which there is no available information of the local soil conditions were excluded. These data were limited to a few recordings from earthquakes in Greece and Turkey. The regional distribution of the selected recordings is listed in Table 2 Table 2: Regional Distribution of Selected Recordings Active Region Number of Number of Earthquakes Recordings Alaska 3 57 Armenia 1 1 California 81 1311 Canada 1 3 Georgia 1 5 Greece 8 13 Idaho 2 5 Iran 2 14 Israel 1 1 Italy 8 43 Japan 1 22 the Netherlands 1 3 New Zealand 4 5 Nicaragua 2 2 Russia 1 1 San Salvador 1 2 Taiwan 6 1753 Turkey 7 56 Totals 131 3297 Figure 1 shows the magnitude-distance distribution of the selected recordings. As in most recent developments of empirical ground motion models for application in California, recordings from other regions serve the primary roll in providing data at large (M > 7) magnitudes. C&Y2006 Page 3
Figure 1: Magnitude-distance-region distribution of selected recordings. Figure 2 shows the values of peak acceleration and 1.0-sec pseudo spectral acceleration for the selected recordings plotted versus rupture distance, RRUP. During the PEER-NGA project, the issue was raised concerning the use of data from aftershocks. We have included data from aftershocks but have allowed for the possibility that there may be systematic differences in the ground motion amplitudes produced by main shocks and aftershocks. Our reason for including the data is that they provide additional information to constrain the soil amplification model parameters. C&Y2006 Page 4
Page 1 and 2: Chiou and Youngs PEER-NGA Empirical
Page 3: data are consistent with strong mot
Page 7 and 8: Figure 2: Empirical ground motion d
Page 9 and 10: EQID Earthquake M Table 3: Inferred
Page 11 and 12: Site Average Shear Wave Velocity: A
Page 13 and 14: Figure 6: Relationship between VS30
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 -
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esid 2 1 0 -1 -2 SCEC Version 2 0 2
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Amplification w.r.t. Vs30 = 1130 m/
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Sa(g) Sa(g) 10 1 0.1 0.01 10 1 0.1
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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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