Northridge Logic Tree Hazard Curves

Northridge, PGA
Northridge, 1.0s SA

Northridge, PGA

Primary	Comparison

Northridge, PGA, Hazard Value Distributions

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2% in 50 year	10% in 50 year

Comparison Distribution, 2% in 50 year	Comparison Distribution, 10% in 50 year

	2% in 50 year	10% in 50 year
Primary	0.8620428 (g)	0.4921983 (g)
Comparison	0.8478994 (g)	0.5001661 (g)

Northridge, PGA, Deformation Model Hazard

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Individual Curves	Choice Mean Curves

2% in 50 year	10% in 50 year

	2% in 50 year	10% in 50 year
Full Model	0.8620428 (g)	0.4921983 (g)
Geologic	0.8313483 (g)	0.4778177 (g)
Evans	0.7287697 (g)	0.41861078 (g)
Pollitz	0.9447588 (g)	0.5482201 (g)
Shen-Bird	0.86579126 (g)	0.4943548 (g)
Zeng	0.86692786 (g)	0.489826 (g)

Northridge, PGA, Scaling Relationship Hazard

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Individual Curves	Choice Mean Curves

2% in 50 year	10% in 50 year

	2% in 50 year	10% in 50 year
Full Model	0.8620428 (g)	0.4921983 (g)
LogA+4.3	0.82969666 (g)	0.46644515 (g)
LogA+4.2	0.8487972 (g)	0.48252684 (g)
LogA+4.1	0.87079287 (g)	0.5016399 (g)
WdthLmtd	0.8495775 (g)	0.48450324 (g)
LogA+4.2, SqrtLen	0.89843416 (g)	0.51620555 (g)
WdthLmtd, CSD	0.8710981 (g)	0.49819076 (g)

Northridge, PGA, Supra-Seismogenic b-value Hazard

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Individual Curves	Choice Mean Curves

2% in 50 year	10% in 50 year

	2% in 50 year	10% in 50 year
Full Model	0.8620428 (g)	0.4921983 (g)
b=0.0	0.843231 (g)	0.47426423 (g)
b=0.25	0.85482806 (g)	0.48503312 (g)
b=0.5	0.8645835 (g)	0.49338603 (g)
b=0.75	0.8721986 (g)	0.5009834 (g)
b=1.0	0.87396055 (g)	0.50563174 (g)

Northridge, PGA, Paleoseismic Data Uncertainties Hazard

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Individual Curves	Choice Mean Curves

2% in 50 year	10% in 50 year

	2% in 50 year	10% in 50 year
Full Model	0.8620428 (g)	0.4921983 (g)
EvenFit	0.857014 (g)	0.49017736 (g)
OverFit	0.85456765 (g)	0.48895368 (g)
UnderFit	0.8744865 (g)	0.49749383 (g)

Northridge, PGA, Segmentation Model Hazard

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Individual Curves	Choice Mean Curves

2% in 50 year	10% in 50 year

	2% in 50 year	10% in 50 year
Full Model	0.8620428 (g)	0.4921983 (g)
None	0.8487993 (g)	0.4770932 (g)
LowSeg	0.8540017 (g)	0.48278126 (g)
MidSeg	0.8502152 (g)	0.48067334 (g)
HighSeg	0.84395874 (g)	0.47723305 (g)
Classic	0.95936346 (g)	0.57548684 (g)

Northridge, PGA, Regional Seismicity Rate Hazard

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Individual Curves	Choice Mean Curves

2% in 50 year	10% in 50 year

	2% in 50 year	10% in 50 year
Full Model	0.8620428 (g)	0.4921983 (g)
PrefSeis	0.8611765 (g)	0.49162662 (g)
LowSeis	0.8386053 (g)	0.47415805 (g)
HighSeis	0.88875914 (g)	0.5112989 (g)

Northridge, PGA, Seismicity Declustering Algorithm Hazard

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Individual Curves	Choice Mean Curves

2% in 50 year	10% in 50 year

	2% in 50 year	10% in 50 year
Full Model	0.8620428 (g)	0.4921983 (g)
GK	0.83947355 (g)	0.47450623 (g)
NN	0.8930207 (g)	0.51484853 (g)
Reas	0.8405125 (g)	0.47635138 (g)

Northridge, PGA, Seismicity Smoothing Kernel Hazard

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Individual Curves	Choice Mean Curves

2% in 50 year	10% in 50 year

	2% in 50 year	10% in 50 year
Full Model	0.8620428 (g)	0.4921983 (g)
Adaptive	0.8886496 (g)	0.5135098 (g)
Fixed	0.81750596 (g)	0.45418257 (g)

Northridge, PGA, Off Fault Mmax Hazard

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Individual Curves	Choice Mean Curves

2% in 50 year	10% in 50 year

	2% in 50 year	10% in 50 year
Full Model	0.8620428 (g)	0.4921983 (g)
MMax7.3	0.8611718 (g)	0.49183774 (g)
MMax7.6	0.8620348 (g)	0.492178 (g)
MMax7.9	0.8629774 (g)	0.492721 (g)

Northridge, 1.0s SA

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Primary	Comparison

Northridge, 1.0s SA, Hazard Value Distributions

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2% in 50 year	10% in 50 year

Comparison Distribution, 2% in 50 year	Comparison Distribution, 10% in 50 year

	2% in 50 year	10% in 50 year
Primary	0.6048039 (g)	0.32208177 (g)
Comparison	0.5446224 (g)	0.28921133 (g)

Northridge, 1.0s SA, Deformation Model Hazard

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Individual Curves	Choice Mean Curves

2% in 50 year	10% in 50 year

	2% in 50 year	10% in 50 year
Full Model	0.6048039 (g)	0.32208177 (g)
Geologic	0.5845062 (g)	0.31621584 (g)
Evans	0.4785336 (g)	0.2665772 (g)
Pollitz	0.67447364 (g)	0.36556417 (g)
Shen-Bird	0.6057434 (g)	0.31922746 (g)
Zeng	0.60702413 (g)	0.32144043 (g)

Northridge, 1.0s SA, Scaling Relationship Hazard

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Individual Curves	Choice Mean Curves

2% in 50 year	10% in 50 year

	2% in 50 year	10% in 50 year
Full Model	0.6048039 (g)	0.32208177 (g)
LogA+4.3	0.5663893 (g)	0.29478496 (g)
LogA+4.2	0.58949345 (g)	0.31274268 (g)
LogA+4.1	0.61177653 (g)	0.32977247 (g)
WdthLmtd	0.5884767 (g)	0.3128735 (g)
LogA+4.2, SqrtLen	0.6452408 (g)	0.3460474 (g)
WdthLmtd, CSD	0.62017035 (g)	0.3309923 (g)

Northridge, 1.0s SA, Supra-Seismogenic b-value Hazard

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Individual Curves	Choice Mean Curves

2% in 50 year	10% in 50 year

	2% in 50 year	10% in 50 year
Full Model	0.6048039 (g)	0.32208177 (g)
b=0.0	0.59025383 (g)	0.3087947 (g)
b=0.25	0.59980106 (g)	0.3170627 (g)
b=0.5	0.60833406 (g)	0.32345954 (g)
b=0.75	0.61289483 (g)	0.32838193 (g)
b=1.0	0.6117591 (g)	0.330942 (g)

Northridge, 1.0s SA, Paleoseismic Data Uncertainties Hazard

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Individual Curves	Choice Mean Curves

2% in 50 year	10% in 50 year

	2% in 50 year	10% in 50 year
Full Model	0.6048039 (g)	0.32208177 (g)
EvenFit	0.60161084 (g)	0.32113013 (g)
OverFit	0.5981031 (g)	0.3192952 (g)
UnderFit	0.61463207 (g)	0.32583785 (g)

Northridge, 1.0s SA, Segmentation Model Hazard

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Individual Curves	Choice Mean Curves

2% in 50 year	10% in 50 year

	2% in 50 year	10% in 50 year
Full Model	0.6048039 (g)	0.32208177 (g)
None	0.60979694 (g)	0.31587934 (g)
LowSeg	0.6104483 (g)	0.3196583 (g)
MidSeg	0.6024178 (g)	0.31718493 (g)
HighSeg	0.5897634 (g)	0.31263033 (g)
Classic	0.6346302 (g)	0.3642457 (g)

Northridge, 1.0s SA, Regional Seismicity Rate Hazard

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Individual Curves	Choice Mean Curves

2% in 50 year	10% in 50 year

	2% in 50 year	10% in 50 year
Full Model	0.6048039 (g)	0.32208177 (g)
PrefSeis	0.6041837 (g)	0.32168782 (g)
LowSeis	0.5950387 (g)	0.3150364 (g)
HighSeis	0.6176595 (g)	0.33091393 (g)

Northridge, 1.0s SA, Seismicity Declustering Algorithm Hazard

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Individual Curves	Choice Mean Curves

2% in 50 year	10% in 50 year

	2% in 50 year	10% in 50 year
Full Model	0.6048039 (g)	0.32208177 (g)
GK	0.60096616 (g)	0.3193227 (g)
NN	0.6106303 (g)	0.32626113 (g)
Reas	0.6006207 (g)	0.31907457 (g)

Northridge, 1.0s SA, Seismicity Smoothing Kernel Hazard

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Individual Curves	Choice Mean Curves

2% in 50 year	10% in 50 year

	2% in 50 year	10% in 50 year
Full Model	0.6048039 (g)	0.32208177 (g)
Adaptive	0.60986876 (g)	0.32603785 (g)
Fixed	0.59700793 (g)	0.31592128 (g)

Northridge, 1.0s SA, Off Fault Mmax Hazard

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Individual Curves	Choice Mean Curves

2% in 50 year	10% in 50 year

	2% in 50 year	10% in 50 year
Full Model	0.6048039 (g)	0.32208177 (g)
MMax7.3	0.6028999 (g)	0.32089114 (g)
MMax7.6	0.6047465 (g)	0.32201728 (g)
MMax7.9	0.60715395 (g)	0.3237758 (g)

Northridge Logic Tree Hazard Curves

Table Of Contents

Northridge, PGA

Northridge, PGA, Hazard Value Distributions

Northridge, PGA, Deformation Model Hazard

Northridge, PGA, Scaling Relationship Hazard

Northridge, PGA, Supra-Seismogenic b-value Hazard

Northridge, PGA, Paleoseismic Data Uncertainties Hazard

Northridge, PGA, Segmentation Model Hazard

Northridge, PGA, Regional Seismicity Rate Hazard

Northridge, PGA, Seismicity Declustering Algorithm Hazard

Northridge, PGA, Seismicity Smoothing Kernel Hazard

Northridge, PGA, Off Fault Mmax Hazard

Northridge, 1.0s SA

Northridge, 1.0s SA, Hazard Value Distributions

Northridge, 1.0s SA, Deformation Model Hazard

Northridge, 1.0s SA, Scaling Relationship Hazard

Northridge, 1.0s SA, Supra-Seismogenic b-value Hazard

Northridge, 1.0s SA, Paleoseismic Data Uncertainties Hazard

Northridge, 1.0s SA, Segmentation Model Hazard

Northridge, 1.0s SA, Regional Seismicity Rate Hazard

Northridge, 1.0s SA, Seismicity Declustering Algorithm Hazard

Northridge, 1.0s SA, Seismicity Smoothing Kernel Hazard

Northridge, 1.0s SA, Off Fault Mmax Hazard