1. Developer Scope Ground Motion Model (median, standard dev) –Ground Motion Parameters: Horizontal components (Ave Horiz, FN, and FP) PGA, PGV, PGD Pseudo spectral acc at 5% damping: 0-10 sec –Applicable Magnitude Range: 5.0 - 8.5 (SS) 5.0 - 8.0 (RV) –Applicable Distance Range: 0 - 200 km –Fault Types Strike-slip, Reverse, Normal –Site Classification Scheme Developers select their preferred classification scheme Need not include soft-soil

2. Key Data Set Issues A&SC&BC&Y Chi-Chi MSyes Chi-Chi ASyesnoyes Koceali & Duzce yes Ducze Lamont Sta yesno Dist Range0-1000-600-300

3. Distance Attenuation A&SC&BC&Y Mag dep slopeYes yes Mag dep HNo no Q (linear R term)??yes

4. Site Terms A&SC&BC&Y Vs30Yes yes Soil categoryNo no Z1.0yes Z1.5?Yesyes Empirical non- linear No?yes Model driven non- linear Yes?no Basin response???

5. Source Parameter Models A&SC&BC&Y Oversaturation with magNoYes (M1)no Aspect ratioYesYes (M2) Style-of-faultingYes yes DipNo / ?Yes? Hypo depth??yes HW/FWPlanned planned Static stress dropno Shallow slipNo no

6. Aleatory Variability A&SC&BC&Y Inter-event and intra- event terms Yes Mag dependence Yes Distance dependence ?Nono

7. Key Issues Oversaturation –Is it due to the aspect ratio, or the magnitude? Use of Aspect ratio –Are aspect ratios used in NGA consistent with aspect ratios currently used in hazard analyses? –Correlation with style-of-faulting Dependence on dip –Is this dip effects or a regional effect?

8. Key Changes from Previous Models Site classification –Vs30 –Depth of soil term (Z1.0 or Z1.5) Source –Oversaturation with magnitude –Aspect ratio as a key parameter Non-linear site response –Based on median rock PGA including event term

9. C&Y, SS, Vs=600

10. C&B (M1) SS, Vs=600

11. A&S, SS, AR<=2, Vs=600

12. A&S, SS, Vs=600

13. M6, SS, Vs=600

14. M7, SS, Vs=600

15. M8, SS, Vs=600

16. T=1 sec Vs=600 C&Y w/o AR

17. T=1 sec SS Vs=600 C&B w/o AR

18. T=1 sec SS Vs=600 A&S AR<=2

19. T=1 sec SS Vs=600 A&S

20. PGA - Intra-Event Variability

21. T=1 - Intra-Event Variability

22. T=1, Inter-Event Variability

23. PGA - Inter-Event Variability

24. PGA Hazard Vs=600 Site near Hayward Fault (2 km)

25. T=1 sec Hazard Vs=600 Site near Hayward Fault (2 km)

26. PGA Hazard Vs=600 Site near San Andreas Fault (2 km)

27. T=1 Sec, Hazard Vs=600 Site near San Andreas Fault (2 km)

28. Site Amplification for PGA (EPRI model)

29. Site Amplification for PGA (Pen Range model)

30. Site Amplification for PGA

32. Site Amplification for T=1 (EPRI)

33. Site Amplification for T=1 (Pen Range)

34. Site Amplification for T=1