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    • Probabilistic Earthquake Hazard Maps for the State of Montana

    1. Historical Seismicity Quat Faults Regional Source Zones
    2. (a) Quaternary Faults in Southwestern Montana
      (b) Quaternary Faults in Northwestern Montana
    3. Distribution of Quaternary Basins and Site Response Units
    4. Depth to Tertiary Rock in Montana
    5. Peak Horizontal Acceleration on Rock 500 yr Return Period
    6. 0.2 Sec Horizontal Acceleration on Rock 500 yr Return Period
    7. 1 Sec Horizontal Acceleration on Rock 500 yr Return Period
    8. Peak Horizontal Acceleration on Rock 2500 yr Return Period
    9. 0.2 Sec Horizontal Acceleration on Rock 2500 yr Return Period
    10. 1 Sec Horizontal Acceleration on Rock 2500 yr Return Period
    11. Peak Horizontal Acceleration on Rock 5000 yr Return Period
    12. 0.2 Sec Horizontal Acceleration on Rock 5000 yr Return Period
    13. 1 Sec Horizontal Acceleration on Rock 5000 yr Return Period
    14. Peak Horizontal Acceleration on Surface 500 yr Return Period
    15. 0.2 Sec Horizontal Acceleration on Surface 500 yr Return Period
    16. 1 Sec Horizontal Acceleration on Surface 500 yr Return Period
    17. Peak Horizontal Acceleration on Surface 2500 yr Return Period
    18. 0.2 Sec Horizontal Acceleration on Surface 2500 yr Return Period
    19. 1 Sec Horizontal Acceleration on Surface 2500 yr Rerun Period
    20. Peak Horizontal Acceleration on Surface 5000 yr Return Period
    21. 0.2 Sec Horizontal Acceleration on Surface 5000 yr Return Period
    22. 1 Sec Horizontal Acceleration on Surface 5000 yr Return Period
    23. Modal Magnitude for Peak Horizontal Acceleration on Rock 500 yr Return Period
    24. Modal Magnitude for Peak Horizontal Acceleration on Rock 2500 yr Return Period
    25. Modal Magnitude for Peak Horizontal Acceleration on Rock 5000 yr Return Period
    26. Modal Distance for Peak Horizontal Acceleration on Rock 500 yr Return Period
    27. Modal Distance for Peak Horizontal Acceleration on Rock 2500 yr Return Period
    28. Modal Distance for Peak Horizontal Acceleration on Rock 5000 yr Return Period